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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；
例句
...a small, expensive pocketknife with a bone handle.
昂贵的骨柄小折刀

marrow

n. 骨髓，脊髓，滋养品，〈英〉食用葫芦；
例句
Some films chill you to the marrow of your bones.
有些电影让人毛骨悚然。

transplantation

n. 移植，移植法，移居，移民；
例句
...the dramatic improvements in organ transplantation in recent years...
近几年器官移植方面取得的巨大进步

began

v. 开始( begin的过去式 )，着手，创始，创办；
例句
He began comically ad-libbing a script...
他即兴调侃起了一段剧本。

years

n. 年( year的名词复数 )，年纪，一年的期间，某年级的学生；
例句
His wife was sentenced to seven years imprisonment for aiding and abetting him...
他的妻子作为他的从犯被判入狱7年。

ago

adv. 以前，过去的，之前；
例句
He was killed a few days ago in a skiing accident...
几天前他在一场滑雪事故中丧生。
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
His record on ceasefires inspires no confidence.
他以往在停火方面的表现让人对他毫无信心。
My underskirt had ridden up into a thick band around my hips.
我的衬裙已经蹿到臀部，厚厚地卷成一圈。
Chances of getting the job were slim, so the young man felt gloomy about the future.
得到这份工作的机会很小, 所以这位青年人感到前途渺茫。
It's a compulsion to write, more than talent, that makes a writer.
成为作家要有天分，但更要有创作的冲动。
Junk dealers and used - car salesmen profiteered on them.
经营废旧品和推销旧汽车的商人在他们这些人身上发了横财.
scuff one’s shoes
把鞋穿坏
The membership application came before the Council of Ministers in September...
会员申请书于9月提交部长会议审议。
He has the face as though an Aztec sculptor had attempted a portrait of Seba stian.
他的脸,好象墨西哥印第安人(阿兹台克人)雕刻家试着刻出来的塞巴斯蒂安的雕像.
She particularly relishes fried rabbit - heads, the Sichuan version of late - night kebab.
她尤其喜欢炸兔头, 这是英国深夜烤肉串的四川版.
His head throbbed...
他的头阵阵作痛。