单词：fertilises
(fertilise 的第三人称 -s形式) vt. 使肥沃, 施肥于, 使多产, 使丰富, 使受精
-s form of fertilise
v make fertile or productive
v provide with fertilizers or add nutrients to
v introduce semen into (a female)
v make fertile or productive
v provide with fertilizers or add nutrients to
v introduce semen into (a female)
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发表于:2019-01-05 / 阅读(448) / 评论(0)
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Egg Cells 卵细胞 Do you know what an egg cell is? 你知道什么是卵细胞吗？ An egg cell is necessary for reproduction. 卵细胞是繁殖的必要条件。 Animals have egg cells. 动物有卵细胞。 Then does every animal have egg cells
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Another sexual difference among mammals that doesnt hold with other animals is size. In most mammals the male is larger than the female, but in most other animals where there are two distinct sexes, the female is the larger one. Today scientists defi
发表于:2019-03-06 / 阅读(450) / 评论(0)
英语时差8，16
英语时差8，16