P-bromobenzenesulfonate
[化] 对溴苯磺酸盐(或酯)
🗣️ 情景例句
do I really have to
我是不是真的有必要
I suppose it's an inconvenience for you to do this.
我推测对你来说做这件事情是很不方便的。
Which book?
哪一本？