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1·He would stay for hours at a stretch in the laboratory.

他能一连几个小时呆在实验室里。

2·Whereas purposeful men could make their way across a narrow bridge, the slow diffusion of plant and animals would require an avenue as a continent and available for ages at a stretch.

有目的的人可以通过一座狭窄的桥，而植物和动物的缓慢扩散则需要一条像大陆一样的道路，而且需要很长时间才能使用。

3·Today I really swam to my heart's content. I did 3,000 metres at a stretch.

今天我一口气游了三千米，真过瘾。《新英汉大辞典》

4·She worked for six hours at a stretch.

你需要一种弹性很大的布料。

5·She worked for six hours at a stretch.

她连续工作了六个小时。

6·Can you work eight hours at a stretch?

你能连续工作八小时吗？

7·Can you work for six hours at a stretch?

你能连续工作六小时吗？

8·They had to stand for hours at a stretch.

他们不得不连续站立几个钟点。

9·He and Allen would argue for hours at a stretch.

和艾伦连续争吵过几个小时。

10·At a stretch.

一段时间。