back k down放弃;让步
Back In Down Under回到下
Back hawk down黑鹰坠落
let her back hair down不拘礼节
let our back hair down不拘礼节
let his back hair down不拘礼节
let their back hair down不拘礼节
let my back hair down不拘礼节
take one's back hair down把头发散开放下来;坦率直言;无拘无束;态度随便
PHRASAL VERB(动词词组) If you back down, you withdraw a claim, demand, or commitment that you made earlier, because other people are strongly opposed to it. (因他人反对而) 放弃
It's too late to back down now.
现在打退堂鼓为时已晚。