1. how about 的意思与 what about 的意思近似，用以提出建议
How about going for a walk?
去散步怎么样？
How about going to cinema?
去电影院怎么样？
How about ten years, or a century?
那么十年，或者一个世纪又怎么样呢？
2. at cost adv. 按成本；照原价
You can buy the wines at cost.
你可以按成本价“买”这几种酒。
All repairs are billed at cost.
所有的修理都是成本价。
We're selling at cost origin.
咱们已经是按成本价卖了。
3. would you mind 你介意……吗？
Would you mind giving her a message?
你介不介意给她带个口信？
Would you mind explaining this to me?
请给我解释一下你不介意吧？
Would you mind looking over my essay?
我的这篇文章请你过目一下好吗？
