It's monotonous work, like most factory jobs.

这是个单调的工作，和大多数工厂工作一样。

《柯林斯英汉双解大词典》

This leave allows employees to return to work refreshed and ready to face what is often a monotonous work life.

这段假期让员工精神焕发地回到工作岗位，并准备好面对平常单调的工作生活。

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I do not like my monotonous work.

我不喜欢我那单调乏味的工作。

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"The work was monotonous, arduous and unrelenting, " he said.

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