Pentabromination
五溴化反应
🗣️ 情景例句
I have a daughter.
我有一个女儿。
Goodness, I do hope this isn't a loud gun. I hate noise.
但愿这不是一把会发出巨响的手枪。俺不喜欢噪音。
Jim, could you help me, please?
吉姆，你能帮我吗？