Hohmannite
碱性水铁矾, 褐铁矾
🗣️ 情景例句
You've been like a second family to me.
你们就像我的第二个家一样。
Don't make it any worse than you can help.
尽量不要把事情弄得更糟。
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。