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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
The fire started late Saturday in tinder-dry grass near the Snake River.
大火是星期六晚些时候在斯内克河附近干枯的草地上燃起的。
the therapeutic properties of herbs
草药的医疗效用
She was jealous, humiliated, and emotionally at the end of her tether.
她既忌妒又感到屈辱，感情上已经到了崩溃的边缘。
His voice had a deep timbre.
他嗓音低沉。
His friends used to tease him about his tatty clothes.
他的朋友过去常常笑话他破旧的衣服.
Carrie seemed quite tractable, and he congratulated himself.
嘉莉看上去很温顺, 他暗自感到庆幸.
What tractability can you offer on the vegetables that it is chemical free?
你方能供应哪些不含化学成分且易于加工蔬菜的产品 呢 ?
They seemed unreal and kind of tatty.
这些礼拜仪式似乎不是真实的且显得有点寒酸.
Specify a different drive in the TEMP environment variable.
在TEMP环境变量中指定其他驱动器.
To adjust or align ( mechanical parts ) with a trammel.
用量规调整或校正 ( 机械部件 )
I didn't want to be low man on the totem pole for ever.
我不想永远当小人物。
" I must tarry at home, and keep watch over my little Pearl.
“ 我得呆在家里, 照顾好我的小珠儿.
The whole tenor of discussions has changed.
讨论的整个主旨变了。
" Oh , hello, Mr. Lee. How are you toady? "
哦, 喂, 李先生, 你今天好 吗 ?