他的毅力实在太了不起了！

Tāde yìlì shízài tài liǎobuqǐ le!

His willpower is really so extraordinary!

你真了不起！

Nǐ zhēn liǎobuqǐ!

You are really terrific!

你的成绩真是了不起！

Nǐ de chéngjī zhēnshì liǎobùqǐ!

Your grades are really impressive!