Allylation
烯丙基化
🗣️ 情景例句
I never liked that umbrella stand.
我一直嫌那伞架碍事。
Carrion crows bewail the dead sheep and then eat them.
乌鸦吃死羊，先要哭一场；猫哭老鼠假慈悲。
and in the course of a few hundred miles reaches the true ocean floor at 2,500-3,500 fathoms.
一直延伸到几百英里远深达2，500至3，500的地方，