Boron tribromide
[化] 三溴化硼
🧩 词语组成解析
boron
[['bɔ:rɔn]]
n. 硼\\n[化] 硼B
n. [化]三溴化合物
🗣️ 情景例句
No. This is my first visit.
没有。这是第一次。
I'm writing to a friend of mine in South American.
我在写信给一个美国南部的朋友。
and comforted by the thought of the help he was bringing to his friend,
想到能对朋友有所帮助，他感到欣慰，