Have you ever just "had" to clean your office before you could begin your project?
你试过开始项目之前不得不清扫你的办公室吗？
Have you ever found yourself without a pair of clean socks?
你有没有过发现自己没有一双干净的袜子的时候？
Have you ever worked in the clean room?
你在净化车间里面工作过吗？
Sailing into a clean city which nobody has ever visited.
飞入一个无人曾落脚的纯净城市。
Sailing into a clean city which nobody has ever visited.
飞入一个无人曾落脚的纯净城市。
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