Paramutualism
兼性互惠共生
🗣️ 情景例句
We have 5 international patents which we are ready to sell.
我们有五项国际专利可以出售。
He skinned his knee.
他擦破了膝盖的皮。
Sure that I had passed, I was almost beginning to enjoy my test.
确信我已通过考试，所以我几乎开始喜欢起这次考试。