2 sentences for 抓紧 (zhuā​jǐn — focus on)

1. 军队在平时也要抓紧训练。

   jūn​duì zài píng​shí yě yào zhuā​jǐn xùn​liàn.

   The army must also keep up with training during peacetime.

   Source: Dong Chinese Dictionary

2. 我们要抓紧生产安全，不能有丝毫马虎。

   wǒ​men yào zhuā​jǐn shēng​chǎn ān​quán, bù néng yǒu sī​háo mǎ​hu.

   We must focus on production safety and cannot afford to be careless.

   Source: Dong Chinese Dictionary