Allyl group
[机] 烯丙基
🧩 词语组成解析
n. [化]烯丙基
group
[ɡrup]
n. 组，团体;群，批;（雕塑等的）群像;（英美的）空军大队;
vt.& vi. 使成群，集合;
vt. 分类，归类;
🗣️ 情景例句
You and Robbie and me.
你 ，Robbie和我。
The dinner was superb. Who cooked it?
菜太棒了！谁做的？你吗？
Up to now, historians have assumed that calendars came into being with the advent of agriculture, for then man was faced with a real need to understand something about the seasons.
历史学家迄今认为日历是随农业的问世而出现的，因为当时人们面临着了解四季的实际需要，