Principle piece of sperm tail.

Only during ovulation does this become thin enough to be penetrated by sperm cells.

其他的精子在数小时里,于阴道微酸的并由此而在不利的环境中死去的.

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A sperm is mostly a nucleus surrounded by little other cellular material.

精子的主要是一个细胞核和围绕该细胞核的少量其他细胞物质构成.

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He has a low sperm count (= very few live male cells) .

他的精液精子计数低。

《牛津高阶英汉双解词典》

Conception occurs when a single sperm fuses with an egg...

当一个精子和一个卵子结合时受孕就发生了。

《柯林斯高阶英汉双解学习词典》

...a sperm donor.

精液捐献者

《柯林斯高阶英汉双解学习词典》

Any disease which undermines a man's general health will interfere with his sperm production...

任何有损男性整体健康状况的疾病都会影响精子的产生。

《柯林斯高阶英汉双解学习词典》

They can go to a sperm bank and take a chance on unknown genes.

他们可以去精子库,去选择不知名者的精子.

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In most cases, donor sperm is obtained from a sperm bank.

大多数情况是捐精来自精子库.

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Miranda : Honey, let's go to the sperm bank to search for a suitable sperm donor.

亲爱的, 我们到精子银行找找合适的精子捐赠者吧!

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You went to a sperm bank?

你去精子银行?

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A sperm whale is to have dived to 2000 metre.

据说一头抹香鲸潜到了2000米.

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The sperm whale has about thirty teeth in its lower jaw.

在抹香鲸的下颚上大约有30颗牙齿.

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The only enemy of the giant squid seems to be the sperm whale.

巨型乌贼的唯一的敌人似乎是抹香鲸.

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The sperm whale does not feed on small fish like other whales.

巨头鲸不象其它鲸一样以小鱼为主食.

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A sperm whale has 50 teeth.

抹香鲸有50颗牙齿.

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The sperm whale is dangerous.

鲸鱼中抹香鲸最危险.

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This is the largest sperm whale in the world.

这是世界上最大的一头巨头鲸.

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The sperm whale therefore has to look for the squid using sound waves.

因此巨头鲸就只得利用声波来寻找鱿鱼.

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The toothed whale has a large square head with a cavity that contains the so-called spermaceti.

锯齿鲸拥有很大的头颅.在头颅的腔里含有 所谓 的鲸脑油.

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Photo Gallery: Whales Sperm whales'heads are filled with a mysterious substance called spermaceti.

鲸鱼图片 美术馆 .巨头鲸(抹香鲸)的头部充满一种神秘的物质叫做鲸脑.

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