But no one imagined they'd been fertilized.

但没人想到它们已经受精了。

Those who came before did, after all, fertilize the soil out of which they grew.

毕竟，前人给自己生长的土壤施了肥。

Timing is also important for fertilizing.

施肥的时机也很重要。

These fish breed in groups where one male fertilizes several females.

这些鱼成群繁殖，一只雄鱼使几只雌鱼受精。

Then, the soil can be fertilized using recycled biological waste.

然后，可以使用回收的生物废物对土壤进行施肥。

And so where the soils are consequently far less frequently fertilized naturally.

因此，那里的土壤自然施肥的频率要低得多。

Farmers usually take care of the last bit by fertilizing their fields.

农民一般通过给田地施肥来提供养分。

Are you really okay with another man fertilizing your wife's egg?

你真不介意另一个男人给你妻子的卵子受精吗？

The fertilized egg develops into a fetus.

受精卵发育成一个胎儿。

And their poop turns out to be incredibly important because it fertilizes the phyto.

它们的粪便惊人地重要，因为滋养了浮游生物。

“We owe it to the people who whose blood has actually fertilized the grounds of this place.”

“我们应该感谢那些人，他们的鲜血让这里的土地肥沃起来。”

You know, a zucchini or cucumber is curving because not all of the seeds have been fertilized.

你知道，西葫芦或黄瓜是弯曲的，因为不是所有的种子都受精了。

The first stage of the cycle is menstruation, and occurs if the egg has not been fertilized.

月经周期的第一阶段是月经，发生在卵子尚未受精的情况下。

That’s amazing! So each month, the woman produces these eggs and then waits for them to be fertilized?

太惊奇了！因此，每个月女性都会排卵，然后等待受精？

Normally, the earth stores CO2, which fertilizes the soil.

通常，地球会储存能使土壤变肥沃的二氧化碳。

And he needs to keep watering the tree, fertilizing it, and cutting off the excess branches.

而且他需要不停地给树浇水、施肥，剪掉多余的树枝。

Plough land, plant a crop, water, fertilize, harvest, and repeat each year.

犁地、种庄稼、浇水、施肥、收获。年而复始。

Where we would eat crops fertilized with our own waste.

我们的排泄物可以作为肥料培育可食用的农作物。

Japanese researchers have developed an unusual method of fertilizing pear trees by blowing pollen-laden bubbles into orchards.

日本研究人员研发了一种不同寻常的方法给梨树施肥，即把装满花粉的泡泡吹进果园里。

However, older eggs may not fertilize normally and there is an increase of chromosomal abnormalities with age.

然而，较老的卵子可能不能正常受精，而且随着年龄的增长染色体异常也会增加。