Barium carbide
[化] 二碳化钡
🧩 词语组成解析
barium
[['bɛəriəm]]
n. 钡\\n[化] 钡Ba
n. 碳化物\\n[化] 碳化物; 碳化钙; 电石
🗣️ 情景例句
It's too soon to know for certain.
现在还太早， 不知道确切情况 。
I haven't heard from him for a long time.
我很久没有收到他的信了。
But even the mosquito has been subdued by attention to drainage and by chemical sprays.
然而即使蚊子，也由于我们注意清理污水和喷洒化学药品而被制服了。