Boron (tri)fluoride
[化] 氟化硼; 三氟化硼
🧩 词语组成解析
boron
[['bɔ:rɔn]]
n. 硼\\n[化] 硼B
🗣️ 情景例句
I think it's about time we got going.
我想差不多是告辞的时候了。
He must have three more weeks of rest before he is released.
他在出院以前，还需要三周时间的静养。
Spring is a pretty season，
春天是一个好季节。