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- Oh, I wish to goodness I were twenty one. 嗨，我要是二十一岁就好了。
- These regulations relate only to people under the age of twenty one . 这些规则仅适用于21岁以下者。
- The weatherman says,: the highest temperature during the day will be twenty one degrees centigrade. 天气预报员说:今天白天最高气温为摄氏温度二十一度。
- Within seven years, twenty one people who had something to do with the opening of the tomb died. 七年内;曾参与打开陵墓的21个人相继死去.
- Twenty one cases of recurrent inguinal hernia were repaired with preperitoneal marlex mesh. 采用腹膜前Marlex网片植入法对21例腹股沟复发疝进行了修补。
- Twenty one patients with aphasia were selected as the case group and 21 normal adults with similar backgrounds as the control group. The difference of scores of the ZM2.1 function subitems were compared between these two groups. 选择21例失语患者为研究对象，另21例与之匹配的正常人为对照组，比较两组ZM2.;1各功能亚项的成绩差异。
- The determination of twenty one kinds of constant and trace elements in Chinese herb Ranunculus ternatus thunb was performed by ICP-AES. 运用ICP-AES法对河南、新疆产猫爪草中常量及微量元素进行了测定。
- If we do allow fireworks to be purchased then we must set an age limit that no one can buy fireworks under the age of twenty one. 如果我们要允许人们购买焰火，那么我们必须在购买年龄上设一个限制：任何在二十一岁以下的人都不可以购买焰火。
- Twenty one blood proteins and enzymes loci were detected by polyacrylamide gel electrophoresis (PAGE) and starch gel electrophoresis(SGE). 结果表明;在所检测的21个基因座中;有9个存在多型;多态位点百分比为42.;86%25;群体内遗传变异水平相对较高;平均杂合度为0
- Firstly,twenty one groups of datum of pore volume in relation to initial pressure and balance pressure are measured by serval standard cores. 该方法是用7个标准钢心测得孔隙体积关于初始压力与平衡压力的21组数据;
- The Seller will send documents for each consignment to the Buyer by courier originating from the Sellers offices within21( twenty one) banking days from the Bill of Lading Date. 卖方必须将每次发货的单据由卖方办事处在提单日期的21银行日内经由快件寄给买方。
- Methods Twenty one Jersey rabbits were divided randomly into three goups ,operation group; normal sodium control group and sham-operation group,seven rabbits in every groups. 方法取新西兰大白兔21只,随机分成手术组、生理盐水组和假手术组三组,每组7只。
- Methods Twenty one patients who were pretreated with either chemotherapy or combined radiation chemotherapy underwent APBSCT and the number of CFU F was assayed by Dexter method. 方法 采用Dexter型方法 ,检测 2 1例外周血干细胞移植患者经单化或化放结合两种预处理方案 ,观察前后不同时间骨髓基质细胞集落形成能力。
- In twenty one cases, the 3-year survival rate is 71.4%(15/21). The 5-year survival rate is 61.9%(13/21). Except for one with his whole thraot and hypopharynx cut, 18 cases succeeded in detubation and 2 cases were difficult in detubation but of orthphony. 2 1例中 ,3年生存率 71 4%25 (15 /2 1) ,5年生存率 61 9%25 (13 /2 1) ,除 1例全喉下咽切除外 ,18例病人顺利拔管 ,2例拔管困难 ,但发音正常。
- Methods:The clinical traits were studied in 41 PKMD patients,and routine EEG was recorded in all of them. Twenty one of the 41 patients underwent ambulant EEG recording and limb movement evoked activation was done in 8 patients during EEG monitoring. 方法 :详细观察PKMD4 1例的临床特征 ,全部进行了常规脑电记录 ,2 1例进行Holter脑电长时间监测 ,在脑电图监测下 8例作运动诱发试验。
- Twenty one patients with the first Q wave type acute anterior or inferior myocardial infarction undergone invasive left ventriculography and coronary angiography were scored with QRS scoring system. 对21例做过左室和冠状动脉造影的首次发生Q波型急性前壁或下壁心肌梗塞患者采用Wagner心电图记分法进行心电图QRS记分。
- Twenty one new O (1,2,2,2 tetrachloro)ethyl O substituted phenyl phosphoramidothionates were synthesized and their structures were characterized through IR, NMR( 1H、 31 P) and MS. 以取代的苯氧基替代烷氧基，合成了21种新的O-（1，2，2，2-四氯）乙基-O-取代苯基硫逐磷酰胺酯。
- She is one of the best hurdlers in the world. 她是世界上最优秀的跨栏选手之一。
- He entered on his inheritance when he was 21. 他21岁时继承了财产。
- Objective The effect of recombinant human granulocyte colony stimulating factor(rhG CSF)on the sensitivity of acute myeloid leukemia(AML) cells to cytosine arabinoside(Ara C)in vitro was studied in twenty one patients. 目的探讨rhG－CSF对21例急性髓性白血病（AML）细胞体外对阿糖胞苷（Ara－C）敏感性的影响。
