an Achilles' heel 阿喀琉斯的脚后跟
go/walk down the aisle 结婚
meet your Waterloo 遭遇失败
face the music 为自己的言行承担后果
armed to the death 武装到牙齿
carrot and stick 胡萝卜加大棒
vote with one's feet 用脚投票
shed crocodile tears 流鳄鱼的眼泪
castles in the air 空中楼阁
strike while iron is hot 趁热打铁
When in Rome, do as the Romans do. 入乡随俗
add fuel to the file/flames 火上浇油
