8．nail
If you see two of your classmates fighting tooth and nail, you must stop them at once. Other wise, at least one of them would be hurt.
Nail also means a thin pointed piece of metal for hammering into sentence:”peter is as hard as nail;s.” We all hope that we are as strong and healthy as he is.
Then, if I say you hjav hit the nail on the head, I do not mean that you have done something cruel. I mean that you have said exactly the right thing.
指甲
如果你看到你的同学又抓又咬地打起来，你就应马上制止他们，否则他们其中至少一人会受伤。
Nail的另一解释是“钉子”，但在句子Peter is as hard as nails（彼得结实得像铁打的似的）中却和身体有关。我们都希望自己同样结实强健。
如果我说：You have hit the nail on the head，并不是说你做了残忍的事，我是指你说得非常中肯，真是一针见血。
9. fist
When the fingers of your hand are closed tighhtly. Your hand becomes a ifst.” He shook his fist at me.” That shows he was very angry.
But fist may refer to “hand”. Let’s make up. Give me your fist.”What the speaker wants is to shake hands with you and be your friend again.
The phrase hand over fist is interesting. isn’t it? It has both “hand”and “fist” in it. It means fast and in large amounts”.Suppose your uncle keeps a store. When business is very good., his store may make money hand over fist. On the contrary, if business is very bad, it may lose money hand over fist.
拳头
手指捏紧便成fist（拳头）,He shook his fist at me（他向我挥拳头），表示他非常生气。
但fist也可以指手。”Give me your fist”（让我们言归于好吧），说这话的人是想把你的手伸给他，他要和你握握手，再做你的朋友。短语hand over fist 挺有趣的，是吧？hnad和fisrt两词都用上了，意思是“迅速而大量”。假设你的叔叔开了一间店铺，生意好的时候，他的铺子就会大赚其钱（make money hand fist），反之，生意太差的时候，就可能大亏其本（lose money hand over fist）.
10. leg
The word leg appears in many colloquial expressions. At a party, when you feel like dancing, you can say to a good friend of yours, “Let’s shake a leg.” Obviously, it means Lets’ dance. “When you want your friedn to hurry, you can also say “ Shake a leg”. In American English it means “hurry”.
The arms and legs are very important to us. Therefore, when asked why you are not going to buy something expensive, you may answer,” it costs an arm and a leg!” You mean that it is really expensive.
腿
Leg一词见于许多习语中。在晚会上，如果你想跳舞，你就可以对你有好朋友说：“Let’s shake a leg。显然这是说：“我们来跳舞吧”。当欠希望你的朋友赶快的时候，你也可以说shake a leg，因为在美式英语里指的是“赶快”。
腿和手臂对我们来说都很重要，因此当有人问你为什么不买某种高价物品时，你可以这样回答：“它贵得要命！”（It costs an arm and a leg.）
11. kness
People may go on their knees when admitting defeat and begging for mercy. They may bend the knee to someone to admit he is their master.These ideas are conveyed in Chinese in much the same way.
When a person is badly frightened, his legs may tremble, and his knees may knock together. Now we believe you have no difficulty in getting at the meaning of this sentence:” The criminal’s knees were knocking together from fear.”
膝
承认失败并恳求宽恕时，人们会屈膝跪地求饶。向别人屈膝或屈服于某人（to bend the knee to someone）就是承认他是主人。中文也以类似方式表达这种意思。
当一个人异常害怕的时候，双腿就会打颤地，因此双膝就会砬到一起。那么，下面这一句话的含义相信你就不难理解：“The criminal’s knees were knocking together from fear.”（罪犯吓得双腿发抖）。
12． shin
The shin is the bony front part of the leg between the knee and the ankle. It plays an important role in waliking, running ,jumping and climbing. At a football match, you can see football players wear shin-guards to protect their shin-bones.
Shin can be a verb, too. If you have a little brother to look after, you should warm him againstshinning up trees or shinning over walls, for it is dangerous for him to do so.
胫（小腿）
胫就是膝与踝之间小腿前面带骨的部分。胫在走、跑、跳、爬方面起重要作用。在足球赛场上，你可以见到足球运动员戴上护胫以保护自己的胫骨.
Shin（攀爬）也可以是个动词。如果你有个小弟弟要照料，你可以提醒他别爬树或爬墙。因为他那样做是很危险的。
13．calf
Where part of the body is called calf? It is the fleshy back part of the leg between the knee and the ankle. The muscles in your calves may e sore after climbing, running or walking for a long time. Althletes often loosen the muscles in their cavels by pressing and rubbing them.
Most people wear socks which cover the ankle and the lower part of the leg. But some people, especially football players in a match, wear socks which cover the calf. Similarly, some girls like miniskirts, others prefer calflength skirts.
腓（小腿）
人体的哪个部位称作calf呢？是介乎膝和踝之间小腿的肌肉部分。在攀爬、跑步或长久走路之后，小腿的肌肉可能会感到酸痛。运动员时常揉搓小腿来放松那里的肌肉。
多数人穿的短袜仅及小腿以下，略高于脚踝。但是有些人，特别是比赛中的足球运动员，则穿遮盖整个小腿的袜子。同样，一些女孩喜欢迷你裙，另一些则喜欢长及小腿的裙。
14． foot
Every beginner of English knows this simple word. But it is not always simple.” The baby has just found his feet. “If you take the sentence literally, you will not think that it makes sense. But it does. It means that the baby has just leamed how to walk.
In comparison, the phrase stand on one’s own feet is easier to understand, fro there is a similar expression in Chinese. One should try to stand on one’s feet when one has grown up.
脚
每个初学英语的人都认识这个简单的词。不过它并非总是那么简单。The baby has just found his feet.如果你从字面去理解这个句子，你就会觉得它没有意义。但它是有意义的，含量是：婴儿刚刚学会了走路。比较起来，stand on one’s own feet （自立）这句话则较易于掌握，因为中文也有类似的说法。一个人长大了就应该力求自立。
15. nkle
In running, jumping, skating or sking, you may sprain your ankle when you are not careful enough. The sprained ankle hurts you when you walk, and it takes time to heal. So take care while you are playing or having sportgs.
Some people like to wear ornaments such as necklaces, bracelets and anklets. What is an anklet? Obviously, it is an ornament for the ankle. Some minorities in China and some tribes in Africa like to wear ankles.
踝，脚脖子
跑、跳、溜冰、滑雪，人一不小心就有可能扭踝骨。当你走路时，扭伤的踝骨就作痛，要康复起来可得费时间呢。因此，你玩耍或运动的时候，要好好注意。有些人喜欢穿戴饰物，如项链、手镯、anklet之类。而anklet是什么呢？显然易见，那是踝的装饰品（踝环，脚镯）。中国一些少数民族以及非洲某些部族都喜欢戴脚镯。
16. heel
Everybody has heels. There is nothing special about it. But Achilles’ heel is unusual because it refers to a person’s fatal weakness. So we can say.
When someone shows a clean pair of heels., is he showing off? Not at all,. The phrase means”escape in a hurry!” If I shout “ Keep to heel!” or “Come to heel!” you must not follow me. I am calling my dog to follow me closely
脚跟、踵
每个人都有脚跟，没有任何特别的地方。但Achillrs’ heel可就特别了，因为它所指的是一个人的致命弱点，所以我们可以说：“懒惰是他的致命弱点”(Achilles’ heel)。
当某人shows a clean pair of heels 的时候，那他是不是在炫耀呢? 不是的，那是“溜之大吉”的意思。要是我喊Keep to heel! Come to heel!你可别听我的，
我是在叫我的狗紧紧跟上我。
17．toe
To convey the idea “from head to foot”. English people can say from top to toe. But Chinese people don’t.
Some people turn their toes out when they walk. Some turn their toes in >Are you one iof them?
When foced with danger, we must be alert and ready for action, that is to say, we muct be on our toes.
脚趾，足尖
要表达“从头到腿”的意思，英国人会说”from top to toe”（从头到顶到脚尖），中国人却不会这样说。
有的人走路“八字脚”(turn one’s toes out)，有的人走路“八字脚”（turn one’s in ）。你是其中一种吗？
面对危险时，我们必须保持警觉，随时准备行动。换句话说，欠们必须be on our toes（保持警惕）。
