The other actors were thrown into confusion when she started ad-libbing her final speech.当她开始即兴说出最后的台词时，其他演员都方寸大乱。He has surprised his supporters and wrong-footed his opponents with his latest announcement.他最新发布的声明让支持者大呼意外，令反对者方寸大乱。This business with John has quite put me off my stroke.跟约翰的这档子事让我方寸大乱。