Daniels is at his best when he's cool and direct, rather than combative and polemical.

丹尼尔斯冷静、坦率时表现最好，而好斗、爱辩时则不然。

《柯林斯英汉双解大词典》

This was Henman at his best.

这是亨曼的最佳表现。

《牛津词典》

At his best, Mr Kennedy was a fine orator.

在他最佳的时候，肯尼迪先生是一个很好的演说者。

youdao

And they were friends. The reporter knew even at the time that this friendship was the best experience of his life.

VOA: special.2010.03.06

At age thirty-eight he scored four goals as his team gave the best performance ever by a team from Africa.

VOA: special.2010.06.09

He would send his navy boats past the city at night and hope for the best.

VOA: special.2009.11.19

But he is at his best when his words seek to leave the world a different place.

BBC: Obama as warrior and healer

For all the disappointments in his career, Monfils is usually at his best in Paris.

WSJ: Monfils Looks Back in Form at the French Open

He trusted me to direct him as I wanted - to show him at his best.

BBC: Andy Warhol portraits 'forgotten' for 30 years