The two reporters were moving around in search of human interest vignettes. 
两位记者在转来转去，物色有人情味的材料。 

compare to把...比作
He compared the girl to the moon in the poem.
他在诗中把那姑娘比作月亮。

a couple of  一对， 几个；三两个

It will take a couple of years to harness that river. 
治理那条河流要花两三年时间。 

talk to与……谈话

Can I talk to Susan, please? 
请问, 我和苏珊说句话行吗?

take turns轮流
They were taking turns to be on the night shift.
他们轮流做夜班。