Carbocation
碳阳离子
🗣️ 情景例句
I would like to order now, please.
我现在可以点菜了。
A burnt child dreads the fire.
一朝被蛇咬，十年怕井绳。
He was just able to lie down on the ground, but could not stand up.
他只能躺在地上，但不能站起来。