Carbocation
碳阳离子
🗣️ 情景例句
It's a pleasure to meet you too, Mrs. Green. I've heard so much about you.
格林太太，我也很高兴见到您。早就听说过您。
Because of the type of purchase, we can only ship by road.
由于商品的性质，我方只能使用公路运输。
Come in and sit down. Wei Hua!
进来坐坐，魏华！