另两个为胸腺嘧啶和胞嘧啶, 即称为嘧啶的单环结构.The other two, thymine and cytosine, are single ring structures called pyrimidines.直到不久以前,人们对胸腺的功能尚不明了.The function of the thymus was unknown until relatively recently.动物的免疫系统由两个主要部分组成,即胸腺和骨髓系统.I...
With one sweep of her hand she threw back the sheets.她手一挥掀开了床单。The anti-drug sweep had netted nearly 900 kilogrammes of cocaine.扫毒行动已缴获了近900千克的可卡因。Get a broom and sweep up that glass will you?拿扫帚把那些玻璃清扫干净好吗？...
她把厨房门重重地关上，我甚至听到了碟子的震颤声。She slams the kitchen door so hard I hear dishes rattle.桌上放着堆满了糖果的碟子。On the table were dishes piled high with sweets.他把它放在精美的白色碟子里端上了桌。He served it up on delicate white plates....
The school inspection is going to put the teachers on their mettle.对学校的视察将使教师发挥出他们的全部潜力。Playing a small gong, clapper struck the staff and inspection field.打小锣 、 敲梆子的人员兼检场.Methods Puncturing and absorbing cytology inspec...
He was winded and shaken.他呼吸困难，身体发抖。He was badly winded and concussed.他呼吸特别困难，而且有严重的脑震荡。The articles are long - winded and devoid of substance.这些文章空话连篇....
这个博物馆将长期展出60辆老爷车。The museum will have a permanent exhibition of 60 vintage cars.那堵墙的5块大碎片眼下正在伦敦展出。Five large pieces of the wall are currently on exhibition in London.到1936年她已在皇家艺术学院展出作品。By 1936 she was exhibiting at the ...
它只是一种作秀而已。It was just a piece of play-acting.他们靠作秀出名的日子早已过去。The days when they needed to pull publicity stunts to get noticed are long gone.反对该措施的人士认为这是一场政治作秀，会对经济发展带来严重的打击。Opponents of the measure say it's politica...
Horseplay is OK at work as long as are off the clock.马球是只要你的工作确定的关闭时钟.After the horseplay by the wicked students, the classroom floor was strewn with crumbled chalk dust.那班顽皮学生闹著玩儿,捏碎不少粉笔,过后, 教室地板上撒满了粉笔灰....