为首

yǐ zǒng tǒng wéi shǒu de dài biǎo tuán

以总统为首的代表团

delegation led by the president

yǐ wài jiāo bù bù zhǎng wéi shǒu de zhèng fǔ dài biǎo tuán

以外交部部长为首的政府代表团

a government delegation led by the foreign minister

fàn zuì tuán huǒ de wéi shǒu fèn zǐ yǐ bèi zhuā huò

犯罪团伙的为首分子已被抓获。

The ringleader of the mobsters has been busted.