Carbocation
碳阳离子
🗣️ 情景例句
It's important
这是很重要的
I want to go coach, and I'd prefer a morning flight.
我要普通舱，还有，我喜欢早上的班机。
Greetings! Please be seated. Are you Antonio, and is this your agreement with Shylock?
您好！请坐下。你叫安东尼奥吗？这是你与夏洛克签订的借约吗？