The principle promissory estoppel may prevent Y from retracting his promise with retrospective effect.

For example, the estoppel is often used in the verb form estop.

例如衡平法不得自驳这字词, 常作不得的动词式用.

Methods Serum levels of testosterone and estradiol were measured with radioimmunoassay in 42 patients with acne vulgaris.

方法测定42例寻常性痤疮患者血清睾酮和雌二醇水平.

The possible protective mechanism of estradiol is releasing.

降低体内NO含量是脑保护的可能机制.

Purpose To synthesize a new antitumor drug 2-methoxy estradiol which is an angiogenesis inhibitor.

目的合成抗肿瘤新药新生血管形成抑制剂2甲氧基雌二醇.

ER binding sites in tumor were determinedby tritiated estradiol binding method.

用氚标记雌二醇结合法测定瘤内的ER结合位点数.

Both estradiol and TCDD inhibited the CXCR 1 expression and IL 8 secretion by ESC.

17β-雌二醇和二?f英 单独作用均抑制子宫内膜间质细胞表面CX-CR1的表达以及IL-8的分泌.

Estragon : Hey , who's that guy ? long time no see, my old fellow!

嗨, 看那是谁? 好久不见了, 我的老朋友!

He decided to reward Estragon and Vladimir for praising him by making Lucky entertain them.

爱斯特拉冈和弗拉季米尔称赞了波卓几句,为了表示答谢,波卓让幸运儿表演个节目给他们看.

Estragon, in a brilliant police uniform, with a parcel. meet Vladimir.

爱斯特拉冈, 身着一身神气的警服, 手掂一小包裹. 碰到了弗拉季米尔.

His behaviour estrange him from his brother.

他的行为使他与哥哥疏远了.

Hughes and Smith were later given commendations for bravery.

而后,休斯和史密斯因英勇行为被授予奖状.

Did you receive positive commendations by your supervisors ( or clients, vendors, coworkers, etc. )?

你是否受到上级 ( 或客户 、 销售商 、 同事等 ) 的赞扬?

Meanwhile the Conference gave commendations to 20 excellent Confucius institutes and 30 excellent individuals.

大会还表彰了20所先进孔子学院和30位先进个人.

She permitted her son to visit her estranged husband.

她允许她的儿子去看望她分居的丈夫.

Arran became increasingly estranged from the mainstream of Hollywood.

阿伦变得越来越脱离好莱坞的主流了。

The most remote two points in this world are two estranged hearts.

人世间相距最远的两点,是两颗隔膜的心.

They are rather estranged from each other.

他们之间有些隔膜.

Estranged lover tarnished each melody when all my revealed affections were overturned.

已经疏远的爱人(指对方或自己,主动跟被动的差异而已)所有旋律都黯淡,当我发现我所有的爱都被抹煞了.

He estranged himself from politics.

他已脱离政治.

He had been convicted for the 1988 murder of his estranged wife and her father.

波伊德是因为1988年谋杀他分居的妻子和妻子的父亲而被处决的.