Monobromination
一溴化
🗣️ 情景例句
and you won't get so many colds anymore.
你就不会老患感冒了。
The history paper was really easy, so was the biology one.
历史试题确实容易，生物试题也很容易。
They may also have used wood and skins, but these have rotted away.
他们也可能用过木头和兽皮，但这类东西早已腐烂殆尽。