紧要关头

Successful host–host transmission is critical for the survival of obligate, intracellular parasites.

成功的主人–主人传输对生存是紧要关头的使负义务，intracellular 寄生虫。

Even as a child he had saved his energy until itcounted most, parceling out his reserves like a miser.

当他还是小孩子的时候，他就会保存体力留给紧要关头，就算那时他也还是像守财奴一样小心翼翼地分配他的储备。

He's the sort of man you can't reckon on in a crisis.

他是一个在紧要关头靠不住的人。

Most evidence suggests that this process can only occur when the soil is saturated and transpiration is low, but the critical thresholds at which root pressure is inhibited have not been established experimentally.

大多数的证据意味着当土壤是饱和的，而且散发是低点的时候，这一个程序才能发生，但是紧要关头的门槛在哪一个根压力被禁止还没有被实验式地建立。

He becomes a sort of hollow, posing dummy, the conventionalized figure of a sahib.

他终其一生都得争取镇住当地人，这是他维系统治的先决条件，所以每逢紧要关头他都得干出点当地人希望他干的事情。

Aspect, fixes setting between nations , the world subject is the peculiar change period to "peace and development " from "war and revolution "; The capitalism dilation and promptness of socialism camp develop coexistence; Domestic, Mao Zedong critical point in semicolonial and semifeudal society nation crisis and society crisis, be confronted with revolution the mission, has experienced the secondary Chinese tradition society change to modern society with arduousness building.

背景方面，国际上，世界主题是从"战争与革命"向"和平与发展"转变的特殊时期；资本主义的扩张与社会主义阵营的迅速发展并存；国内，毛泽东处在半殖民地半封建社会民族危机与社会危机的紧要关头，面临着革命与建设的艰巨任务，经历了中国从传统社会向现代社会的转变。

Aspect, fixes setting between nations , the world subject is the peculiar change period to "peace and development " from "war and revolution "; The capitalism dilation and promptness of socialism camp develop coexistence; Domestic, Mao Zedong critical point in semicolonial and semifeudal society nati...

背景方面，国际上，世界主题是从"战争与革命"向"和平与发展"转变的特殊时期；资本主义的扩张与社会主义阵营的迅速发展并存；国内，毛泽东处在半殖民地半封建社会民族危机与社会危机的紧要关头，面临着革命与建设的艰巨任务，经历了中国从传统社会向现代社会的转变。

Don't you think if push came to shove,he's do the same to you?

你难道不觉得到了紧要关头，他也会那么对你吗？

He was coming to his finest flight, and he wanted it to sink in.

快要到紧要关头了，他要给人以深刻的印象。

That skunk'll let you down at the last minute.

那个混蛋在紧要关头会拆你的台的。

The reasons of iron ions content overproof in grade Ⅱ desalting water system,such as variation water quality,contamination of regenerant , operation adjustment of pretreatment system and switching operation of bed were discussed.

对二级脱盐水系统中铁离子含量超标的原因，如来水水质发生波动、再生剂受到污染、预处理系统操作调整、床体运行切换等进行了论述。

You were hired to drum up new business, so go and do it.

公司雇你招徕新业务，你就做你的事好了。