3 sentences for 磨 (mó — waste time)

1. 这种活动很消磨时间。

   zhè zhǒng huó​dòng hěn xiāo mó shí​jiān.

   This kind of activity is a real time-killer.

   Source: Dong Chinese Dictionary

2. 别磨蹭了，我们快走吧。

   bié mó cèng le, wǒ​men kuài zǒu ba.

   Stop dawdling; let's go.

   Source: Dong Chinese Dictionary

3. 别在那儿磨时间了，赶快出发吧。

   bié zài nà​r mó shí​jiān le, gǎn​kuài chū​fā ba.

   Stop wasting time there; let's head out quickly.

   Source: Dong Chinese Dictionary