Bromonaphthol
溴萘酚
🗣️ 情景例句
my mother is running for the school board?
我母亲竞选联合校董会董事吗？
Saving is getting.
节约等于收入。
but unfortunately not all of us are born handymen.
但不幸的是，我们并非人人都是能工巧匠。