“变卦”用英语怎么说？

“变卦”的拼音为：biàn guà...

昨天他变卦了，说提价只是试行。Yesterday he changed his tune, saying the fare increase was experimental.你从今天早上就变卦了，是不是？You've changed your tune since this morning, haven't you?他因为在几个关键问题上临场变卦而备受批评。He has been criticized for fl...