Tiled kitchen floors are easy to keep clean.

铺了地砖的厨房地面容易保持清洁。

《柯林斯英汉双解大词典》

Keep clean and wash your hands.

保持清洁和洗手。

youdao

Keep clean and confident.

保持清洁和自信。

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But it does not keep people from getting health care or clean water to their houses."

VOA: special.2009.11.28

But for the spaces that everyone shares, it's important to keep those clean

但是对于大家分享的区域，一定要保持干净，

有趣的室友们 - SpeakingMax英语口语达人

This can help a worker keep his nose clean or stay out of trouble.

VOA: special.2009.09.13

He would call her a "dirty bitch" and said she needed to keep clean, the jury heard.

BBC: Oxford exploitation trial: Girl 'branded with hairpin'

Photobioreactors complicated systems of transparent piping through which alga-rich water is pumped overcome those problems, but they cost a lot and are hard to keep clean.

ECONOMIST: Biofuels are back. This time they might even work

Keep it Clean, Keep it Green.

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