费力

Previous analysis of associated gas had the disadvantages of complicated operation, being strenuous, timeconsuming and prone to errors due to the backward in chromatographic column and analyzer, as well as the limitations of separation and detection methods.

早期由于色谱柱及分析仪器比较落后以及分离、检测手段的局限，油田气的组分分析操作烦琐、费力、费时且易产生误差。

As achieving a perfect curriculum schedule in a short time by manual work is not only takes great deal of time, but also is absolutely impossible to make full use of current resources, it is vital significance to develop a set of actually automatic timetabling system.

通过手工排课，不仅费时，费力，而在较短时间内用人工编制一份令人满意且使学校现有资源得到充分利用的课表也不是一件容易的事。因而开发一套符合实际需求的高校课程信息管理系统是非常必要的。

As achieving a perfect Curriculum Schedule in a short time by manual work is not only takes great deal of time, but also is absolutely impossible to make full use of current resources, it is vital significance to develop a set of actually automatic Timetabling system.

通过手工排课，不仅费时，费力，而在较短时间内用人工编制一份令人满意且使学校现有资源得到充分利用的课表也不是一件容易的事。因而开发一套符合实际需求的高校排课系统是非常必要的。

Though she Was on thego all day long,it Was less tiring than fanning,and as no one scold-ed her,cursed her or beat her,she thought herself extremely welloff and wished she could stay there for ever.

伊的新生活从此开始了：虽也是一天到晚地操作，却没下田耕作这么费力，又没人说伊，骂伊，打伊，便觉得眼前的境地非常舒服，永远不愿更换了。

He forced his eyes to check the compass course and his brain to calculate an approximate position.

他强打精神察看了罗盘方位，费力地脑算着目前的大致航行位置。

Years went by while Cockcroft and Walton put together improvised vacuum systems, laboriously sealed the leaks, tried out various devices for handling high voltages, and found them to be inadequate.

考克饶夫和华尔顿在把临时准备的真空系统装配起来，费力地堵塞漏洞，实验各种高压设备却发现并不能用中，度过了一年又一年。

Miss Roscommon rose from the table heavily, for she had put on weight, over the seven years.

罗丝康门小姐费力地从桌子旁站了起来，过去七年中她体重增加了不少。

A mile behind them, Guy of Gisborne had led on twenty mounted men, and thirty men on foot, till they came to a point where not nore than three of them could ride abreast, and the undergrowth on either side was too dense for a man to force his way through.

在他们的一哩之后，盖吉斯朋率领二十位骑马的人和三十位徒步的人，直到他们走到该地点，没有三人能骑马并行，在他们两旁的矮丛太密了，对一个人须费力走过。

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。