Cetyldimethylethylammonium bromide
[化] 溴化十六烷基二甲基乙铵
🗣️ 情景例句
Yes. I'm a designer, and I work in a boutique.
是的, 我是位设计师, 我在一家服装店工作。
How long has it been since you've heard from your uncle?
自从你听到叔叔的消息有多长时间了?
'It may have begun already,' Susan answered.
“也许已经开演了呢,”苏珊回答说。
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