1 sentence for 互惠 (hù​huì — reciprocity)

1. 人类对互惠有着非常清楚的理解。

   rén​lèi duì hù​huì yǒu​zhe fēi​cháng qīng chu de lǐ​jiě.

   Humans have a very clear understanding of reciprocity.

   Source: CCMatrix