The hen just laid an egg.

母鸡刚刚下蛋。

Go on - pretend to lay an egg!

继续——假装下一个蛋！

One day, almost a week later, the swan slipped quietly into her nest and laid an egg.

大约一周后，有一天，雌天鹅轻轻地蹲坐到她的窝里，下了一个蛋。

Just before total darkness, an ostrich laid an egg and hovered over it for a time, protecting it.

就在天完全黑下来之前，一只鸵鸟产下了一个蛋，并在蛋上停留了一段时间，保护着蛋。

Did you have to lay an egg to get that, Duggee?

你是下了一个蛋才得到的吗，道奇？

Once in its burrow, the wasp will lay an egg directly on its victim.

一回到洞穴黄蜂就直接在猎物身上产个卵。

You're laying an egg--that is, I hope you are--and you are entitled to privacy.

你正在下蛋 --我是说，我希望你如此--你应该有天鹅隐私权。

But if an elephant laid an egg from which a lion hatched, would it be an elephant egg or a lion egg?

但如果一只大象下了颗蛋并孵出了狮子，那它是颗大象蛋还是狮子蛋？

She lays an egg on her victim and carefully seals the burrow, which becomes her offspring's nursery — and the cockroach's crypt.

她会在蟑螂身上产卵，然后小心地封上洞穴，这个洞穴即为幼虫的温床、蟑螂的坟墓。

'I feel I might lay an egg any moment!

“我觉得我随时都可能下蛋！

And it would make him shudder to reflect that the Goose might lay an egg!

一想到这只鹅会下蛋，他就会不寒而栗！

So much more sensible to lay an egg and have done with it.

下完蛋就万事大吉不用管 这样才合理得多。

Can you think of the possible benefits of laying an egg with a hard shell?

你能想到用硬壳下蛋可能带来的好处吗？

An insect lays an egg, which changes first into a grub or cater-pillar, then into a pupa or chrysalis, and lastly into an insect.

昆虫产卵, 然后孵化为幼虫或毛虫, 再变成蛹并最终生长为昆虫。

After the wasp stings a tarantula, aiming for a crucial bundle of nerves, it lays an egg on the immobilized spider.

黄蜂蜇了狼蛛后，瞄准了关键的神经束，在固定不动的蜘蛛身上产下了一个卵。

I thought, " Ah, she's going to lay an egg, " so I crawled after her. Well, big mistake. Squawks of, I suppose, fear, and she flew out.

我想，“啊，她要下蛋了，”所以我爬在她后面。我当时犯了个大错误。我猜想，她是害怕了，她嘎嘎叫着就飞了出去。

Now let us suppose that the ancient progenitor of our European cuckoo had the habits of the American cuckoo, and that she occasionally laid an egg in another bird's nest.

现在让我们假设我们欧洲杜鹃的远古祖先具有美洲杜鹃的习性， 并且她偶尔会在另一个鸟巢中产卵。

The wasp then bites off the antennae of the roach, slurping out fluid from the open stems and leads the host to the Wasp’s burrow and lays an egg on its abdomen.

然后黄蜂咬掉蟑螂的触角， 从张开的茎中吸出液体，将宿主带到黄蜂的洞穴， 并在其腹部产卵。