您要查找的是不是：
- random pairwise mating 随机成对交配
- Random mating within a breeding population. 自由交配在一个育种群中自由交配
- Soiled dishes were piled at random. 脏碟子胡乱地堆放着。
- pairwise mating 成对交配
- pairwise mating system 成对交配系统
- The librarian took a book at random from the shelf. 图书管理员从书架上随便拿了一本书。
- The widow mourned for her dead mate. 那寡妇为她已故的丈夫服丧。
- Many animals mate in the spring. 许多动物在春天交配。
- The first mate was studying to become a master. 大副正在学习准备当船长。
- Pandas rarely mate (with each other) in captivity. 猫熊在豢养环境中很少(彼此)交配。
- The monkey scratched about in its mate's fur for fleas. 那只猴子在另一只猴子身上找跳蚤。
- Chose a card at random from the deck. 从一副牌中任意选出一张
- The blackbird sat on the nest waiting for the return of her mate. 黑鹂在巢中等候其雄鸟归来。
- By mere chance or fortune; at random. 碰巧; 胡乱地; 随意地
- Mating blackbirds will defend their territory against intruders. 黑鹂交配时不容许地盘受到外来的滋扰。
- The male hunts for food while his mate guards the nest. 雌性动物守巢时，雄性动物猎食。
- Can fringe voters affect the Pairwise result? 可以附带影响选民配对结果如何呢？
- At thirty, he signed on as first mate with a cargo ship. 他30岁时受雇于一艘货船当了大副。
- An estimator is a random variable. 估计量是一个随机变量。
- He is looking for a wife but he hasn't found his ideal mate. 他正在寻找未来的妻子，但还没有找到理想人选。
