Allylation
烯丙基化
🗣️ 情景例句
in the school and loving every minute of it.
在学校 ，且乐此不疲， 时时如此。
When in doubt, play trumps.
举棋苟不定，何妨将一军。
Let me see. Er, I've been here for just over two years.
让我想想。嗯，我到这儿刚好两年多时间。