地道美语听力练习:和街头小贩讨价还价

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1.want to 应该

例句:I want to run some errands.
我想去办点杂事。

2.knock off 撞倒，打掉

例句:She accidentally knocked the glass off.
她不小心把玻璃杯碰掉了。

3.pass up 撞倒，打掉

例句:She accidentally knocked the glass off.
她不小心把玻璃杯碰掉了。

4.think about 考虑

例句:But think about it.
但是再仔细想想。