往来

他们之间的往来很频繁。

Tāmen jiāqián de wǎnglái hěn piányí.

They frequently interacted with each other.

这家公司与合作伙伴的往来记录。

Zhè gōngsī yǔ hézuòshì de wǎnglái lùjì.

The business exchanges between this company and its partners are documented.