The querulous passenger demanded a refund after every minor delay on the flight.

那位愛抱怨的乘客在航班每次小延誤後都要求退費。

Our support team stayed polite even when the caller became increasingly querulous about shipping fees.

即使來電者對運費越來越牢騷滿腹，我們的客服團隊仍保持禮貌。

During the budget meeting, his querulous tone made it hard to discuss real solutions.

在預算會議上，他滿是牢騷的語氣讓大家很難討論真正的解決方案。