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easy; simple; light
この数学すうがくの問題もんだいはたやすく解けとけそうだ。
This math problem seems easy to solve.
プロの彼かれにとってはたやすいことだ。
It's easy for him as a professional.
そんなにたやすく成功せいこうできると思うおもうな。
Don't think you can succeed that easily.