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In response he not only complained to his colleagues but also to the boss's secretary.

他在回应中不仅向同事们抱怨，还向老板的秘书抱怨。

youdao

He has complained to the police about rowdy neighbours.

他已向警察投诉了吵闹的邻居。

《柯林斯英汉双解大词典》

A woman who had seen the show complained to federal communications officials.

VOA: special.2010.10.17

At breakfast, Athnaise complained to her husband.

VOA: special.2009.06.27

American lawmakers have also long complained that China suppresses the value of the yuan to lower the price of its exports.

VOA: special.2010.07.09

BCH-friendly head of communications last week, Mr Amusategui complained to the Spanish central bank.

ECONOMIST: A spat in Spanish banking

Eisenhower into his publicity schemes, which frustrated Ike, who complained to aides about being used.

NEWYORKER: Let��s Be Friends

When it did not supply the information, the requester complained to the Information Commissioner's Office.

BBC: The group which doesn't know its chief executive's pay