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stingily; tightfistedly; in a miserly manner
naggingly
けちけちしないで奢っおごってよ。
Don't be stingy, treat me.
けちけちせずにお金かねを使うつかう。
Spend money without being stingy.
けちけちした生活せいかつは疲れるつかれる。
A stingy lifestyle is tiring.