Prepurging
洗炉, 清炉(清除炉内气体)
🗣️ 情景例句
We always whispered when Michelle was born.
当Michelle出生的时候， 我们总是压低嗓门说话。
Hold your horses.
耐心点儿。
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。