Back & Forward 回溯与展开
back forward sweep 前推回代
improved back forward sweep 改进前推回代法
forward and back 前后 ; 前进与后退
Movable seat forward and back 座位可前后移动
The camcorder winds the tape back or forward at high speed.
便携式摄像机可以高速度倒带或快进。
I now look forward to going back to work as soon as possible.
我现在盼望尽快回到工作中。
I saw him step forward momentarily but then hang back, nervously massaging his hands.
我看到他向前走了片刻,然后却退缩不前,忐忑不安地搓着手。
He says looking back thousands of years can help researchers look forward by understanding how a disease changed over time.
VOA: special.2010.06.29
So I should warn the people sitting at the back that my handwriting is pretty bad, that's one reason for moving forward.
提醒一下坐在后面的人,我的板书写得很糟,所以最好往前坐
Sorry about this. Those of you in the back, feel free to move forward.
我想把字体调的小点儿,这样我们就能看到更多的内容了。
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