- 推荐网络例句
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It is motile and is produced in an antheridium, except in certain gymnosperms (e.g.Cycas, Ginkgo) in which antherozoids develop from the generative cells of the pollen tube.
除了在一些由花粉管的生殖细胞产生配子的裸子植物中(铁树 Cycas,银杏 Ginkgo ),通常是由精子器产生的并且会游动。
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You must, you must send away this friend of yours.
你必须,你必须把你的朋友送走。
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Dave: Hm. I can't really recall; I'll have to get back to you on that.
嗯。我不太想的起来了,我得查一下才能告诉你。