6．I beg your pardon?

  请你再说一遍。

I beg your pardon 有两个意思。 一是“对不起”， 相当于“I am sorry, 说话时为降调：另一个意思是，当听不清楚或听不懂对方所说的话时，用来问对方“你说什么”，相当于“What do you say?或Will you repeat, please?这时要用升调。如果双方比较熟识，也可以简单说Pardon? What?例：

I beg your pardon, (but) is this your watch ?

对不起，这是你的手表吗？

I beg your pardon for coming.

对不起，来打扰你了。

--We do business on the basis of equality and mutual benefit and exchange of meeded goods.

我们在平等互利、互通有无的上做买卖。

--I beg your pardon? Exchange of needed goods?

我没弄懂exchange of needed goods的意思。

--Well, that is, to exchange what one has for what one meeds.

哦，这么说吧， 用自己拥有的东西去换取自己需要的东西。

--Oh, I see.

哦，我明白了。

7. commission n.佣金（可数，不可炸毁）

We are commission agents. We sell goods on commission.

我们是佣金商，我们销售商品取得佣金。

We do not pay commission to merchants dealing with us on principal-to-pricipal basis. Commission is allowed to agents only.

我们对不经过中间商直接买卖的商人不付给佣金，佣金只付给代理商。

This amount includes all your commissions.

这一数额包括你的全部佣金在内。

The insurance agent received a commission on every policy that the sold.

保险代理人每卖出一张保险单便收到一笔佣金。

Sometimes the buyer deducts a commission for the agent and remits the net amount for purchase to the seller.

有时买方扣除付给代理的佣金，把购买的净额付给卖方。

The salesman get (a) 10% commission on all sales made; if he sells goods worth $ 100, his commission is $ 10.

销售商每卖出一笔货可得10%的佣金。如果的货物值100美元，佣金就是10美元。