git-rebase allows you to make a previously non-linear history linear, keeping the history cleaner.

git-rebase让你将之前的非线性历史改造成线性，让历史保持干净。

youdao

History shows that economic growth and technological change have given mankind not just greater material wealth, but also cleaner air and water.

历史已昭示我们经济的增长和科技的进步布景给人们带来了物质上的丰裕，而且还带来了清洁的水和空气。

youdao

The geothermal resources as local unique tourism resources and cleaner energy has long exploitation history.

地热作为当地特色旅游资源及清洁能源，开发利用历史优久。

youdao

But things are changing thanks to a new constitution put on the books in 1997 that comes closer than any charter in Thailand's coup-and-corruption-plagued 60-year democratic history to providing the checks and balances vital to ensure cleaner, fairer politics.

CNN: From Our Correspondent: Cleaning Up Thai Politics