I need you to get this done by six o 'clock.

我需要你在六点之前把这件事做好。

youdao

We suggest that the test (should) be done by 12 o 'clock.

我们建议这项实验应在12时前完成。

youdao

A person who has not done one half his day's work by ten o 'clock, runs a chance of leaving the other half undone.

一个人要是到十点钟还没有做完他一天工作的一半，就大有可能剩下那一半也做不完。

youdao

"If they can get the work done and walk into your casting office and you cannot tell by looking at them that they've had anything done,that's O.K."

VOA: standard.2010.07.22

The research was done by Professor Sascha O.

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"Anywhere you go and try to harvest fish with a trawl you are going to destroy any coral that lives there, and there is example after example of the damage that is done by trawlers, " says Ron O'Dor, a senior scientist on the Census of Marine Life.

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"I would be very interested to explore the fish data more thoroughly, subdividing by herbivorous and carnivorous groups as we have done for the dinosaurs, " O'Gorman told LiveScience.

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