Alkide
烃基化物, 烷化物
🗣️ 情景例句
Oh, let me think for a minute.
哦，让我想一下。
This dress is made of silk,isn't it?
这件衣服用丝绸做的，是吗？
This will relieve pressure on the trains to some extent.
这将在某种程度上减轻对火车的压力。