Autoinducer
自诱导物
🗣️ 情景例句
You're welcome anytime.
欢迎你随时来玩。
How much does a round trip ticket to go there cost?
一张去那边的往返票要多少钱？
I'm sorry, but I have to cancel out luncheon appointment.
真抱歉，不过我不得不取消我们午餐的约会。