Sailing into a clean city which nobody has ever visited.

飞入一个无人曾落脚的纯净城市。

youdao

It is certain that a clean city can give people a good impression.

一个干净的城市肯定能给人们一个好的印象。

youdao

If each would sweep before his own door, we should have a clean city.

若人人皆能保持自家门前的清洁，便能拥有一个干净的城市。

youdao

Experts said there was still no experimental evidence to prove that the drop in crime was a direct result of efforts to clean up city neighborhoods.

VOA: special.2009.03.03

It's a little bit less clean than, I guess, the rest of the city.

我想，它不如这座城市的其他地方干净。

哈莱姆很独特 - SpeakingMax英语口语达人

He is now concentrating on relatively non-controversial projects such as a city-wide clean-up (though he tactlessly, and unsuccessfully, asked the workers to collect the rubbish after hours without charging overtime).

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He is something else, a bully -- mostly with the approval of his following, who believe (with some cause) that only a bully can clean up New York City.

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The makers say the new bus offers a "sustainable, safe and clean power source", ideally suited for a densely populated city.

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