verb · to lose no time in doing something; to seize the moment

时间不早了，我们得抓紧出发。

verb · to keep a firm grip on or hold onto something tightly

在公车上请抓紧扶手。

verb · to pay close attention to or place emphasis on a specific task or area of work

我们要抓紧生产安全，不能有丝毫马虎。