语文书 / 例句 /

Bone marrow transplantation began 20 years ago.是什么意思？

Bone marrow transplantation began 20 years ago.

骨髓移植开始于20年前。

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
A few months living away from home have given him renewed self-confidence.
离家几个月的生活使他重新获得了自信心。
He decided that he couldn't just slink away, so he went and sat next to his wife.
他决定不能偷偷溜走，于是便走到妻子身边坐下。
Poor economic policies led to a long period of stagnation and decline.
糟糕的经济政策道致了长时间的经济萧条和下滑。
The whole plant is covered with fine down.
整株植物都覆盖着细茸毛。
In the past, defensive manoeuvres often went unpunished.
在过去, 这种防御性的行为经常不受任何惩罚.
There's a crowd of old fogies out there that won't listen to reason.
外面的是一群老古董,讲不通道理的.
The environmental morals have their intension, the epitaxy and main content.
环境道德有其内涵 、 外延和主要内容.
Using a bobbin can prevent different wires from intertwining with each other.
用线板缠线可以有效防止不同的线缠在一起.
He learned to write the numerals before he went to school.
他在上学前学会了数字书写.
The chief of the group has gone over to the opposite.
那个组织的头头归降了对方。