🗣️ 情景例句
I have an announcement to make.
我要宣布一件事。
Hope for the best, but prepare for the worst.
作最好的希望，作最坏的打算。
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。