母鸡会用自己的体温孵化鸡蛋约21天。
The hen uses her body heat to ___incubate the eggs for about 21 days.
他们在车库里精心培育这个项目整整六个月。
They ___incubated the project in their garage for six months.
母鸡通常在窝里孵蛋大约21天。
A hen usually ___incubates her eggs in the nest for about 21 days.
浙公网安备33010902004675号