back off与back up 与back down的区别?额,在电子词典上,都有后退之意.在字典上好像又不是那么回事!额,这三者有啥区别呢?还是可互换?请举例说明一下,好不?我英语很差额、、需要详细一下哈,各自

back down与give up的区别 Never give up!Never back off! back-up back up back away back off back down 区别 playback 与play back come back与go back区别 been back 与come back区别 be back与come back的区别 look back on与look back into come back 与get back 的区别 back face 请问哪位朋友 back face 与back cover 翻译 pay back pay up pay off pay down get to/up/back/on/off/away/out of put off与put back有什么区别put off 与put back都有推迟的意思,具体怎么区别 back up和back off俩个都有后退的意思?那有什么不同 Get off my back. Get off my back.