| 例句 |
The litters of several different females often occupy the same nest.多只雌鸟的幼鸟常会待在同一个巢里。The bright plumage of many male birds has evolved to attract females.很多雄鸟进化出鲜艳的羽衣来吸引雌鸟。The male bird is barely distinguishable from the female.雄鸟和雌鸟几乎无法辨别。The male uses song to attract a female to his nest site.雄鸟用歌声吸引雌鸟到它的鸟巢附近。The chicks will feed on the partially-digested food regurgitated by the parent.这些雏鸟吃的是雌鸟反刍吐出的半消化食物。The hen may not be able to feed its young.雌鸟可能无法给幼鸟喂食。The mother bird's main concern is to provide food for her young.雌鸟最关心的事是给小鸟找食物。In most birds, the male is bigger and more brightly colored than the female.雄鸟大抵都比雌鸟大，而且羽毛颜色更鲜艳。The male bird vocalizes to attract a mate.雄鸟鸣唱以吸引雌鸟。She lays a clutch of four eggs on average.这只雌鸟平均一窝下四只蛋。A rat took the egg while the mother was away from the nest.趁雌鸟不在巢里，一只老鼠把蛋偷走了。The male and female take turns to sit on the nest.雄鸟和雌鸟轮流坐窝。The bright plumage of many male birds has evolved to attract females.很多雄鸟进化出鲜艳的羽毛是为了吸引雌鸟。The hen may not be able to feed its young.雌鸟可能无法给雏鸟喂食。While the eggs are hatching the mother bird stays close to the nest.蛋在孵化的时候，雌鸟守在鸟巢的旁边。The female spends all her time on the nest.雌鸟所有时间都在孵蛋。 |