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clean; clear
pure; honest; clean; innocent; platonic; chaste
清い空気を吸うと気分がとても良くなる。
Breathing clean air makes me feel very good.
彼女は清い心を持った優しい人だと思う。
I think she is a kind person with a pure heart.
山奥の湧き水はどこまでも清かった。
The spring water deep in the mountains was perfectly clear.