老板听完员工的牢骚后作了调整。

Lǎobǎn tīng wán yuángōng de láosāo hòu zuòle tiáozhěng.

After listening to the employees' complaints, the boss made adjustments.

每个人都有发牢骚的权利。

Měi gè rén dōu yǒu fā láosāo de quánlì.

Everyone has the right to voice their complaints.

长时间的加班引起了员工的牢骚。

Cháng shíjiān de jiābān yǐnqǐle yuángōng de láosāo.

Long hours of overtime have sparked complaints from the employees.