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骨髓移植开始于20年前。用英语怎么说？

骨髓移植开始于20年前。

Bone marrow transplantation began 20 years ago.

相关词汇
bone marrow transplantation began years ago

bone

n. 骨头，尸骨，骨质物，有…样的骨头的；vt. 挑鱼刺，剔骨头，剔去…的骨；vi. 苦学，专心致志；

marrow

n. 骨髓，脊髓，滋养品，〈英〉食用葫芦；

transplantation

n. 移植，移植法，移居，移民；

began

v. 开始( begin的过去式 )，着手，创始，创办；

years

n. 年( year的名词复数 )，年纪，一年的期间，某年级的学生；

ago

adv. 以前，过去的，之前；
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
There is a sense of transience about her, a feeling that she has only stopped off here en route to another place.
她给人一种转瞬即逝的感觉，仿佛她只是在前往他处的途中在此略作停留。
The tart flavour of the cranberries adds piquancy.
越橘的酸味很可口。
The principles outlined above for getting the tare weight of containers should be applied.
应该用上面概述的测定容器皮重的方法.
He has recently been refused tenure.
他最近被拒绝授予终身职位.
Even when he was awake he was completely torpid.
他醒着的时候也完全麻木不动.
We put a tarpaulin across the window to block out the sun - light.
我们将油布横挂在窗子上遮住阳光.
They become lamb cropschops Testy once Tasty ones , says Daivd David Johnson.
大卫继续说它们将变成好吃的羊排.
It was a lie, tout court.
那只不过是谎言。
At one time we could transfigure into any shape including any animal form.
在某个时候,我们能变身成任何外形,包括任何动物形体.
The athletes displayed great tenacity throughout the contest.
运动员在比赛中表现出坚韧的斗志.
This is a basic tenet of capitalism.
这是资本主义的一则基本信条.
She was sitting on the rocks in the torrid sun.
她头顶灼热的骄阳坐在岩石上.
If you enjoy acting in plays, join your school's thespian club.
如果你喜欢戏剧表演, 就加入你学校的戏剧社团.
One is also able to see how specific acts are related to a temporal and spatial context.
人们也能看出具体行为是如何与时空相关联的。