Postmedia
(昆虫)后中脉
🗣️ 情景例句
It's a simple idea, and it will work.
这主意很简单， 而且一定可行。
I'm always disappointed when I don't get any mail.
当我收不到任何邮件时，我总是很失望。
Some of the bigger firms are engaged in researches which are of such general and fundamental nature that it is a positive advantage to them not to keep them secret.
某些大公司进行的研究属于一般和基础性的研究。因此不保密对他们才有利。