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working hours; man-hours
労働ろうどう時間じかんが短いみじかい。
Working hours are short.
労働ろうどう時間じかんを減らすへらすべきだ。
Working hours should be reduced.
彼かれの労働ろうどう時間じかんはとても長いながい。
His working hours are very long.