Malcombustion
不正常燃烧
🗣️ 情景例句
He met his girfriend throught a public chat room.
他是在一个公共聊天室里认识他女友的。
Friends are like fiddle-strings,they must not be screwed too tight.
朋友有如琴弦，不能上的太紧。
No, I think it'll be all right for him to go to school.
不，我想他去上学没什么关系。