Polk felt he had done his duty.

波尔克觉得他已经完成了他的使命。

youdao

Mr. Chen has done his duty in this well.

陈先生为这口井已尽了自己的责任。

youdao

He admitted that he hadn't done his duty.

他承认他没尽到自己的责任。

youdao

Polk felt he had done his duty.

VOA: special.2009.03.05

In the letter -- which was mistakenly addressed and returned to the United States, where authorities found it -- Jarrah told his girlfriend he had done his duty.

CNN: Hanjour

He had done his duty, Mr Papon said later.

ECONOMIST: Maurice Papon

His first duty as cover athlete was to shoot the cover, which was done on location in the Big Apple right after the live broadcast in front of hundreds of NFL fans (many of whom were in town for the NFL Draft).

CNN: 'Megatron' talks 'Madden' cover