正文翻譯
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----背信不雅欠達(dá)意警告----

Fertilization is the epic story of a single sperm facing incredible odds

受精是一個蝌蚪面臨著難以想象的困難的史詩故事

To unite with an egg and form a new human life it is the story of all of us

與卵子結(jié)合，形成一個新的人類生命，這也是我們?nèi)祟惖墓适?br/>
During sexual intercourse about 300 million sperm enter the vagina

在性交過程中大約有3億蝌蚪進(jìn)入陰道內(nèi)

Soon afterward millions of them will either flow out of the vagina

不久，數(shù)百萬蝌蚪要么流出陰道

or die in its acidic environment

要么在酸性環(huán)境中死掉

Inside the uterus muscular uterine contractions assist the sperm on their journey Toward the egg

明確的是：子宮肌肉收縮可以幫助蝌蚪游向卵子

However resident cells from the women''s immune system mistaking the sperm for foreign invaders, destroy thousands more

然而，女性的免疫細(xì)胞將蝌蚪誤認(rèn)為是外來侵略者，于是后者成千上萬地卒死

Next half the sperm head for the empty Fallopian Tube while the other half swim toward the Tube containing the unfertilized egg

接下來，一斗向左一半向右，右邊的輸卵管空蕩蕩

now

現(xiàn)在

only a few thousand remain

只剩下幾千條好漢了

Inside the Fallopian Tube tiny cilia pushed the egg toward the Uterus

花開兩朵各表一枝：鏡頭切到輸卵管內(nèi)，小纖毛將卵推向子宮

To continue the sperm must surge against this motion to reach the egg

蝌蚪不得不逆著纖毛擺的方向涌向卵子

Some sperm get trapped in the cilia and die

一些蝌蚪會被困在纖毛中卒死

Which triggers their acrosomes to release digestive enzymes

此舉觸發(fā)了它們的頂體釋放消化酶

enabling the sperm to burrow into the layer

方便蝌蚪鉆入透明帶內(nèi)層

Inside the Zona Pellucida is a narrow fluid filled space just outside the egg cell membrane

那是一個狹窄的充滿液體的空間，就附著在卵子的細(xì)胞膜的外緣

The first sperm to make contact will fertilize the egg

此時唯有冠軍蝌蚪能如愿以償與卵子合體

After a perilous journey and against incredible odds a single sperm attaches to the egg cell membrane

歷經(jīng)此段危險的旅程，冠軍蝌蚪終于附著在卵子的細(xì)胞膜上了

Within a few minutes their outer membranes fuse and the egg pulls the sperm inside

幾分鐘的時間里，它倆的外膜融合，卵子更將蝌蚪吸入體內(nèi)

This event causes changes in the egg Membrane that prevent other sperm from attaching to it

此次融合將導(dǎo)致卵子膜發(fā)生變化，排斥其他蝌蚪與她合體

Next the egg releases chemicals that push other sperm away from the egg

緊接著，卵子將釋放化學(xué)物質(zhì)，將其他蝌蚪推開

and create an impenetrable fertilization membrane

并形成一張難以穿透的受精膜

As the reaction spreads outward the Zona Pellucida hardens trapping any sperm unlucky enough to be caught inside

當(dāng)此反應(yīng)向外擴散時，透明帶就會硬化，把所有不幸的蝌蚪困住

Outside the egg, sperm are no longer able to attach to the Zona, Pellucida

卵子蛋的外面，蝌蚪們再無能夠附著在透明帶上了

Meanwhile inside the egg the tightly packed male genetic material spreads out

同時在卵子蛋內(nèi)部，緊密堆積的雄性遺傳物質(zhì)擴散開來

a new Membrane forms around the genetic material creating the male pronucleus

一張新的膜在遺傳物質(zhì)周圍形成，即雄性原核

Inside the genetic material reforms into 23 chromosomes

原核內(nèi)遺傳物質(zhì)轉(zhuǎn)化成23條染色體

the female genetic material awakened by the fusion of the sperm with the egg finishes dividing

冠軍蝌蚪與卵子蛋的融合喚醒了雌性遺傳物質(zhì)的分裂

resulting in the female pronucleus which also contains 23 chromosomes

導(dǎo)致雌性原核也含有23條染色體

and now the cilia and the Fallopian Tube gently sweep the Zygote toward the uterus

此刻纖毛和輸卵管將受精卵輕掃進(jìn)子宮深處著床

Where he or she will implant in the richer uterine lining

他或她將在營養(yǎng)物質(zhì)更豐富的子宮內(nèi)膜著床

Growing and maturing for the next nine months until ready for birth

在接下來的九個月里發(fā)育成熟，直到降生