Fenestrane
四環壬烷
??? 情景例句
I'll take it. But the price is a bit high. How about free wrapping?
我買了。但價格有點高，免費包裝怎么樣？
We've only sold our product at trade fairs, not in an on-going sales campaign.
我們的產品只在商展時展售，而沒有辦促銷活動。
In many countries, more and more companies are replacing people with computers.
在許多國家有越來越多的公司使用電子計算機來代替人。