at someone's back 1 . 追求;支持(某人) back and forth 2 . 来回地 back in the day 3 . 在过去,在以前 someone's back is turned 4 . 某人的注意力在别处 the back of beyond 5 . 偏僻处 back o'Bourke 6 . (澳,非正式)内地 the back of one's mind 7 . 下意识里 back to front 8 . (英)前后颠倒 back water 9 . 倒桨 back the wrong horse 10 . 下错了赌注;做错了选择 behind someone's back 11 . 在某人背后,背着某人 get (或 put) someone's back up 12 . 惹恼(或惹怒)某人 in back 13 . (北美)在后面(尤指建筑) know something like the back of one's hand 14 . (对地方或路线)了如指掌 on one's back 15 . 卧床疗养 put one's back into 16 . 竭尽全力于 turn one's back on 17 . 对…掉头不管;轻视 with one's back to (或 up against) the wall 18 . 走投无路;处于绝境 back something up 19 . (计算机)备份 back away 20 . 撤退:从某个位置撤离;撤退 back down 21 . 让步,放弃:从某个位置、观点或义务中撤出 back off 22 . 撤回或离开 back out 23 . 中途退出:在完成之前从(某项计划或事业)中退出 back up 24 . 使聚集:引起堆积或经过积累 习惯用语 back and fill 1 . 【航海】调整航向:在狭窄的水道中操纵船,通过调整风帆以便使风帆间进出的风向有所改变