They lay eggs that incubate through the winter.

它们产下卵，要孵化整个冬天。

《柯林斯英汉双解大词典》

It is one of only two mammals (the echidna is the other) that lay eggs.

它是仅有的两种产蛋哺乳动物之一。

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First, the frogs lay eggs, in a pond, and then the eggs turn into tadpoles and the tadpoles turn into more frogs.

首先青蛙产卵，在池塘里，然后那些卵变成蝌蚪，然后蝌蚪变成更多的青蛙。

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Echidnas are like birds and reptiles because they lay eggs.

VOA: special.2009.07.07

"They fly to it thinking they can lay their eggs there and it will be a good place for their eggs to hatch out and eat the rotting meat, but they get tricked into just pollinating the flower."

VOA: standard.2010.07.30

When that happens they all simultaneously mature, emerge, mate, lay eggs if female, and then die.

ECONOMIST: The 17-year cicadas are about to emerge in force

After they mate, the females lay eggs in trees and the adults die.

NPR: Roar of the Cicada

Indeed, both males and females can mate and lay eggs with up to seven different partners in one season.

ECONOMIST: Evolutionary biology