Decylene
[机] 癸烯
🗣️ 情景例句
My name is Wang Feng and I'm calling to cancel plane ticket.
我叫王峰，我想取消我预定的飞机票。
His presence in the room was not noticed.
没有人注意到他在房间里。
Which number do I need, please?
请问我需乘哪路车？