ONろう
Meanings
labortoilefforthardshiptrouble

How to remember

'ROU' — like ROUwing a boat requires immense LABOR and EFFORT.

Vocabulary

労働ろうどう
labor, work
努力どりょく
effort, exertion
過労かろう
overwork, strain
疲労ひろう
fatigue, tiredness
苦労くろう
troubles, hardships

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