回上一层第叁部 第二课 --- 请重复跟读，直到可以於声音档的留空之间唸完整句為止；熟练之后您必将可以 "脱口而出" 地说出标準的美式英语
- buy into
- Do you buy into the Lincolns' excuses?
- buy off
- It is no use trying to buy me off.
- buy out
- Microsoft bought out some small companies and incorporated their software in its products.
- Patrick bought out several small stockholders.
- buy up
- Sean bought up all the available land.
- For the feast, Ryan bought up all the pork and beef from the supermarket.
