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1·Scientists continue to push back the boundaries of human knowledge.

科学家不断扩大人类知识的范围。《牛津词典》

2·Papa would push back his chair and pour a glass of red wine, ready to listen.

爸爸会推开座椅，倒上一杯红酒，准备仔细聆听。

3·But we have ways to push back.

但我们也有反击的手段。

4·But the pedals push back on me.

但踏板对我有反力。

5·Why didn't you push back on the pedals?

我不是告诉你了么，你怎么不踩那个踏板呢？

6·It will push back.

它要推动你。

7·America's strategists will push back in 2011.

美国的战略家们会在2011年进行反击。

8·The firm wanted to push back the deadline but was refused.

公司想推迟截止日期，但遭到了拒绝。

9·Two new projects, however, aim to push back both these limits.

所幸的是，两个新项目正在努力打破这些限制。

10·And when I would ask questions or push back, I was being 'difficult.'

当我想提问或反对时，就变得很‘困难。’