查询词典 sperm whales

If a man does not allow his sperm to fertilise an egg at least once during his lifetime he has no chance of passing on his genes to the next generation, and the genetic line, hundreds of millions of years long, that led up to his appearance on earth is terminated.

如果一个男人不容许他的精子受精的鸡蛋至少有一次在他的一生中，他没有机会通过他的基因给下一代，和遗传路线，数以亿计的年久，导致了他的外观在地球上是终止。

If a woman does not oulate there is no egg for sperm to fertilise and so she cannot become pregnant.

如果一位妇女不能排卵，那么就不能形成受精卵，也就不会怀孕。

Only using sperm that carry an X chromosome to fertilise the egg means only unaffected girls are conceived.

只选择带有X染色体的基因的精子进入卵子。也就是说生一个没有缺陷的女儿。

They are not sure why smokers produce fewer boys, but they suspect that sperm carrying the Y chromosome for male children may be more susceptible to the effects of tobacco which could make it less likely to fertilise the woman's egg.

他们无法确定，为什么吸烟者生男孩的可能性较小。但是他们怀疑，决定生男孩的携带y 染色体的精子更容易受香烟的影响，使其与卵子结合的可能性降低。

In fact, drake penises come in a wide variety of shapes and sizes that are thought by students of the subject to be part of an arms race to ensure that it is the owner's sperm that fertilise the next generation of ducklings, rather than anybody else's.

事实上公鸭阴茎的形状与大小各不相同，该方面的学生将这一现象想象成是某种军备竞赛以保证生出来的小鸭是自己的后代而不是别人的。

For the disease to occur, a sperm carrying the mutation (50:50 chance) must fertilise an egg carrying the mutation (50:50 chance).

为疾病的发生，精子进行基因突变（ 50：50机会）必须受精鸡蛋进行突变（ 50：50机会）。

The journey sperm undertake on their way to fertilise an egg has been likened to a human trying to swim a journey of several thousand kilometers.

我们可以把精子对于卵子受精的旅程形容为一个人试着游上千公里的的距离。

The blind passages make it likely that sperm will be ejaculated into the wrong place and thus fail to fertilise the duck's eggs.

憩室的作用则是让精液无法达到正确的地方来授精。

Sperm cells swim through the uterus towards the fallopian tube, racing to fertilise an ovum.

精子细胞游过子宫游向输卵管，抢占卵子。

If you have to have chemotherapy this may reduce your sperm count and cause fertility problems.

如果您必须有化疗，这可能降低您的精子计数和事业的生育问题。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？