2 sentences

1. 借来的书必须准时交还。

   jiè lái de shū bì​xū zhǔn​shí jiāo​huán.

   Borrowed books must be returned on time.

   Source: Dong Chinese Dictionary

2. 我一定要亲手交还给他。

   wǒ yī​dìng yào qīn​shǒu jiāo​huán gěi tā.

   I must return it to him personally.

   Source: OpenSubtitles