n. 一副;一对男女;套在一起的两匹马;雌雄成对的动物;
vt.& vi. (使…)成对,(使…)成双;
vi. 交配,交尾;
🗣️ 情景例句
Sure. Would you please sign your name on the back, sir, with your passport number?
每问题。先生,请您在支票背后签上名字和护照号码。
Tomorrow comes never.
切莫依赖明天。
It was not forced upon them by the survival competition; they could have caught and lived on prey without using poison, just as the thousands of non-poisonous snakes still do.