王同学在阅读英文句子的时候看到了“behind bars”，不会翻译询问了英语培训的李老师，那么“behind bars”到底是什么意思呢？先来看两个句子。
If he was convicted , he would spend the rest of his life behind bars .
Why are such people allowed to be free ? Why arent they all behind bars ?
是否已经猜到behind bars 指坐牢。
对话：
James Jones is starting a new life today .
He made a terrible mess of his old life .
He has spent a year behind bars .
He has promised that he will never ever go back .
be a tall order又是什么意思呢？be a tall order 表示任务难以完成。
例句：
Finishing the work by Friday will be a tall order , but well do our best .
要在周五前完成这项工作是个艰巨的任务，但我们将会竭尽全力。
It was a tall order for the zoo to adapt a building to house the new arrivals .
对动物园来说，改造笼舍给新来的动物住是一项艰巨的任务。
情景模拟：
Matthew had always wanted too be an actor .
So he was very pleased when he was given the leading part in the school play .
It was a very long part . He knew that learning all the lines would be a tall order .
But he was determined to give a perfect performance on the first night .
