fertile egg
常见例句
- He kindly offers them an extra egg laid by a fertile couple, and the male penguins take turns keeping it warm.
他好心地从别的企鹅那里找来一颗蛋，这两只雄性企鹅便轮流给它保暖。 - Egg -bore diseases are those which are transmitted from the infected dam to the newly hatched offspring by means of the fertile egg .
凡能从感染母鸡通过受精蛋传给所孵出后代的疾病，称为蛋媒疾病。
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