Back & Forward 回溯与展开
forward and back 前后 ; 前进与后退
Movable seat forward and back 座位可前后移动
back circle forward 后撑前回环
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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