Backfiring
v. （內燃機等）發生逆火( backfire的現在分詞 ); 發生回火; （槍炮）向后爆發; 發生意外
??? 情景例句
It always takes time to get used to a new place.
適應一個新地方總是需要一段時間。
There is nothing which has not been bitter before being ripe.
事情在成功前沒有不艱苦的。
I don't know what you're talking about.
我不知道您在說些什么。