1.
The branch of zoology that deals with the study of eggs, especially birds' eggs.
鸟卵学动物学中研究卵的一个分支，尤其是鸟卵
2.
hunting for birds' nests to get the eggs.
为了得到鸟卵而找鸟巢。
3.
The incubating bird does not stay away from her nest long enough for the eggs to become cold.
孵卵的鸟不离开巢太久，以免鸟卵变冷。
4.
Birds, fishes, and insects lay eggs.
鸟下蛋，鱼和昆虫产卵。
5.
The cuckoo lays its eggs in other birds' nests.
杜鹃在别的鸟巢中产卵.
6.
A third theory relating to the clutch size of birds is Ricklefs' "counteradaptation hypothesis".
有关鸟类窝卵数的第3个学说是Ricklefs所提出的“逆向适应假说。”
7.
The thin, brittle, exterior covering of the egg of a bird or reptile.
卵壳鸟或爬虫的薄而易碎的卵外壳
8.
The eggs lie hidden in hollow trees, clumps of grass, and in many kinds of nests.
这些鸟卵藏在树洞里、草丛里、各种各样的鸟巢里。
9.
A container or shelter made by a bird out of twigs, grass, or other material to hold its eggs and young.
鸟巢鸟用小树枝、草或其它东西做的窝或在里边产卵、养鸟或栖息
10.
One, such as an ornithologist, who works with birds.
鸟类学家研究鸟类的人，如鸟学家
11.
The bird mistook the pebble for an egg and tried to hatch it.
那只鸟错将卵石当成蛋，想把它孵出来。
12.
"Birds, fish, and amphibians are "oviparous"."
鸟类、鱼和栖类是"卵生"的动物。
13.
Birds, fish, and amphibians are"oviparious".
鸟类、鱼和两栖类是“卵生”的动物。
14.
nest where birds lay their eggs and hatch their young.
鸟产卵和孵化后代的地方。
15.
Birds, reptiles and insects come from eggs.
鸟类、爬虫及昆虫是卵生的。
16.
The eggs of a hummingbird are no bigger than your thumbnail.
蜂鸟的卵比你的拇指甲还要小，
17.
Birds, fish, and amphibians are "oviparous".
鸟类、鱼和栖类是“卵生”的动物。
18.
The bird mistook the pebble for egg and tried to hatch it.
这只鸟错把卵石当蛋, 想去孵它。