Paramutualism
兼性互惠共生
🗣️ 情景例句
You do the same. Well, I'd better go. Thanks again for everything.
你也代我问候一声。好，我得走了，再次谢谢你们的招待。
Work today,for you know not how much you may be hindered tomrrow.
今朝有事今朝做，明朝可能阻碍多。
They finally found a small gold coin which was almost worthless.
但最后找到的是一枚几乎一钱不值的小金币。