Paramutualism
兼性互惠共生
🗣️ 情景例句
Would you like to sign the contract now?
你现在要签这合同吗？
My watch is fast and your watch is slow.
我的表快，而你的表慢。
A journalist is interviewing the director of a play.
一位记者正在采访一位戏剧导演。