They are the only two egg-laying mammals in the world.
它们是世界上唯一的两种产卵的哺乳动物。
The property of egg-laying for quails was also studied.
同时考查了高碘蛋生产阶段鹑的生产性能。
This is egg laying season, if you're a bird.
如果你是一只鸟，现在就是产卵季节。
The flies were given two different fruits as egg laying sites.
产卵点选择后果蝇被供给2种不同的水果。
The property of egg - laying chicken was also studied.
同时考查了高碘蛋生产阶段乌骨鸡的生产性能。
以后正在下蛋。
以后正在下蛋。
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