Tetramethylammonium
四甲基铵
🗣️ 情景例句
But you can have one when you go home, Carl.
但你回去以后还可以办一个呀 ，Carl。
Just go by yourself!
自己去就好了嘛。
Sally was very excited because she had never travelled on a train before.
萨莉非常激动，因为她从未乘过火车。