2 sentences for 校 (jiào — proofread)

1. 这部古籍需要经过仔细的校勘。

   zhè bù gǔ​jí xū​yào jīng​guò zǐ​xì de jiào kān.

   This ancient book needs careful collation and editing.

   Source: Dong Chinese Dictionary

2. 编辑正在办公室校这本书的样稿。

   biān​jí zhèng​zài bàn​gōng​shì jiào zhè běn shū de yàng​gǎo.

   The editor is proofreading the galleys of the book in the office.

   Source: Dong Chinese Dictionary