不保留

The results showed that Sigma Broad had a good control of Veronica didyma, Avena fatra, Vicia sativa, Galium aparine.and Rorippa indica., more significant in term of fresh weight control and the inhibition rate of weed height despite less weed control in term of plant number,which maintained a certain number of weeds,due to delayed use.

结果表明，阔世玛对小麦田婆婆纳、野燕麦、大巢菜、猪殃殃、野油菜等单双子叶杂草有较好的防除效果，春季晚用，对杂草的密度防效不佳，小麦田间保留了一定数量的杂草，但对杂草的鲜重防效、株高抑制率显著。

The cancer cells are in different differentiation periods: the chromatin of the young cancer cell's nucleus is rich in color and its cytoplasm is basophilous. The young cancer cells don't form into typical glandular cavity; The mature cancer cell is columnar or cubical and its nucleus is located at the base of the cell in gland tube-like arrangement; The decrepit cancer cell stain thin while its nucleus stain dense. The severer's nucleus disintegrate into small fragments. The decrepit cancer cell's arrangement is disorganized, only keeping its glandular shape.

显微镜下癌细胞呈现不同的分化程度：幼稚型癌细胞胞核染色质丰富，胞质嗜碱性，不形成典型腺腔；成熟型癌细胞呈柱状或立方状，细胞核位于细胞基部，呈腺管样排列；衰老型癌细胞胞桨染色变淡，胞核浓染，严重者胞核碎裂成细小碎片，衰老型癌细胞排列紊乱，仅保留腺体样结构轮廓。

According to the result, we believed that the reason resulted in the low sensitivity was that the marker residue compound MQCA structure has changed after conjugated with protein and the antibody induced by the conjugation could not recognize the free MQCA in the ci-ELISA. Therefore we designed some hapten which could reserve the marker residue structural speciality mostly. After synthesis route selection and optimum, the hapten 7-Hydroxymethyl-3-methyl-quinoxaline-2-carboxylic acid was synthesized, used 4-methyl-2-nitroaniline as the start material via six steps, such as oxidation cyclization, bromize reaction, hydrolysis, Beirut reaction, reduction, hydrolysis. This work established basis for producing the high affinity antibody and developing the sensitive ELISA residue detection method.

本论文认为导致ELISA检测灵敏度较低的原因，是残留标示物和蛋白偶联后的特征结构发生改变，诱导产生的抗体不能够对游离MQCA很好的识别，因此，本论文设计了能够最大化保留MQCA结构特征的系列半抗原结构，并对其合成路线进行了筛选和优化，最终以对甲基邻硝基苯胺为起始原料，经氧化环化、溴代、水解、Beirut缩合、还原、水解六步反应制备含羟甲基结构的MQCA衍生物7-羟基甲基-3-甲基-喹噁啉-2-羧酸，为制备对游离残留标示物高亲和力的抗体，高灵敏度的ELISA残留检测方法的建立奠定基础。

Or Wayne Rooney and Coleen McCloughlin could become the McLooneys. Cerys from Aberystwyth says, 'if I had a double barrelled name with my partner I'd be Anyalewechi-Powell.

牛津大学的安德里娅如是说：保留我自己的娘家姓氏能省很多事儿－我用不着变更自己的文件，比如护照和驾照。

The consuetudinary reservation that apparels anew up to now, because people thinks,new clothes is not being worn in the festival want be out of luck.

穿戴一新的习俗保留至今，因为人们认为节日里不穿新衣是要倒运的。

However, perinatal lesions of the corticospinal tract can lead to abnormal development of spinal reflexes that includes retention and reinforcement of developmental features that do not emerge in adult stroke victims, even though they also suffer from spasticity.

无论如何，围产期的皮质脊髓束的损伤可能导致脊髓反射异常发育，包括在那些成人脑中风患者中，即使是他们也表现为痉挛状态时也不出现的发育特征的保留和强化。

Mr Serra is a "developmentalist", as Brazilians call social democrats who retain their faith in active government, so he is ideologically not far from Ms Rousseff, though he seems more likely to push through fundamental reforms needed to improve public services and speed up the economy.

José Serra是一位「发展主义者」，正如巴西人民称呼在现任政府仍保留自己信仰的社会民主人士，所以他在意识形态上距离Dilma Rousseff不远，但他似乎更有可能推动改善公共事业并加速经济所需要的基本改革。

An unstable mix of values:--romanticism, utilitarianism, dominionism, and liberty--has made preservation and protection of America's natural landscape a policy rife with internal contradictions, reversals, and too-little too-late reactions.

一种不稳定的价值混淆－罗曼蒂克主义、功利主义、统治主义及放任主义－使得美国自然景观的保留及保护变成一个盛行著内部矛盾、逆转和太少太晚反应的政策。

An unstable mix of values:--romanticism, utilitarianism, dominionism, and liberty--has made preservation and protection of America's natural landscape a policy rife with internal contradictions, reversals, and too-little too-late reactions.

一种不稳定的价值混淆－罗曼蒂克主义、功利主义、统治主义及放任主义－使得美国自然景观的保留及保护变成一个盛行着内部矛盾、逆转和太少太晚反应的政策。

Hummingbids simply aent able to hold onto adequate watein the event of dought o excessive heat.

在干旱或极度炎热时，蜂鸟根本不能保留足够的水分。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。