由他负责。
Yóu tā fùzé.
Handled by him.
由我来做。
Yóu wǒ lái zuò.
I'll do it.
由北京出发。
Yóu Běijīng chūfā.
Depart from Beijing.
由左到右。
Yóu zuǒ dào yòu.
From left to right.