wǎng lái
大街上往来的车辆很多。
Dàjiē shàng wǎnglái de chēliàng hěn duō.
There are many vehicles coming and going on the street.
他们俩往来十分密切
Tāmen liǎ wǎnglái shífēn mìqiè.
The two of them have very close contact.
我跟他没有什么往来。
Wǒ gēn tā méiyǒu shénme wǎnglái.
I don't have much contact with him.