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遗传密码在上一代确实很少有人知道.用英语怎么说？

遗传密码在上一代确实很少有人知道.

A generation ago genetic codes were certainly unknown.

相关词汇
generation ago genetic codes were certainly unknown

generation

n. 一代人，代（约30年），时代，生殖，产生；

ago

adv. 以前，过去的，之前；

genetic

adj. 遗传的，基因的，起源的，起因的，演变的；

codes

n. [计算机]编码( code的名词复数 )，代号，密码，法典；

were

be的过去时复数和第二人称单数形式，有时代替 was,用于条件从句、动词 wish 之后等；

certainly

adv. 无疑，当然，确定，肯定；

unknown

adj. 未知的，不出名的，从未发生的，从不存在的；n. 不知名或不出名的人，未知的事物，<数>未知数，未知数；
热门例句
He acknowledged publicly that he might have made a mistake.
他当众承认自己可能犯了个错误。
...the spiralling vortex airflow that slows the plane.
使飞机减速的螺旋形气流涡旋
You just go on ahead. I'll come by later...
你只管先往前走。我随后就来。
He who spares his rod hates his son, But he who loves him chastens him early.
24不忍用杖打儿子的,是恨恶他;疼爱儿子的, 趁早管教.
For further information, please contact 414 3925, extension 2253.
详情请致电414 3925,转分机2253。
He sat there while I made the case for his dismissal...
他坐在那儿，听我陈述解雇他的理由。
Baroness Thatcher's claims seem credible to many.
撒切尔女男爵的主张在很多人看来是可信的。
Nothing to be got without pains but poverty.
一份耕耘，一份收获。
This decree obliges unions to delay strikes.
该法令迫使工会推迟罢工。
The right to demand payment from the endorser of a commercial paper when the first party liable fails to pay.
追索权当有支付义务的第一方不能支付时，可以向商业票据的背书人要求支付的权力。
相关例句
Advocate aflame with passion, raise a gun one gun result cockerel.
场主怒火中烧, 举起枪一枪便结果了小公鸡.
The last few weeks have been a real roller coaster.
过去的几个星期，形势真是变幻莫测。
A method to measure coaxiality of axisymmetric aspheric lens is introduced.
介绍了一种轴对称非球面透镜的光轴共轴度的测量方法.
The sonar reveals acres of cobblestone fields surrounding our craft.
声纳揭示出在我们潜水器的周围是一片几英亩大的鹅卵石地.
The newspaper breached the code of conduct on privacy.
该报违反了保护隐私的行为准则。
Local radio stations serving coastal areas often broadcast forecasts for yachtsmen.
服务沿海地区的地方广播电台经常为驾驶游艇出海的人播报天气预报。
Are you a coder?
你是一位程序员 吗 ?
It was forbidden to build any ship larger than a mere coasting - boat.
禁止建造任何比沿岸航行的船只更大的轮船.
Come on, why should COB say and piss lotsof people with that?
再说, cob为什麽非得说这种会惹恼那麽多人的话?
A black coat always looks smart and will never date.
黑色外套看起来总是很潇洒，而且永远也不会落伍。
The Ivory Coast became the world's leading cocoa producer.
象牙海岸成为世界上可可粉的主要产地。
Coarctation of the lower thoracic aorta . [ comment ] .
缩窄下胸 主动脉.
For UV gloss coating can usually be either $ kind coater.
进行UV光油涂布时一般可选用以下＄种涂布机器.
Leave after running only 3 two, the cockerel already preceded half rounds.
开跑后仅两三圈, 小公鸡已领先半圈.