难以

Methods The program algorithm was based on non-parametric and parametric ROC curve analysis theory.

但是这些指标受主观选定分界点的影响，难以准确反映诊断方法的优劣。

Was, he was bound to admit, an exceedingly plucky deed which he could not too highly praise, so that frankly he was utterly at a loss to fathom what earthly reason could be at the back of it except he put it down to sheer cussedness or jealousy, pure and simple.

必须承认这是一种怎样称赞也不过分的无比勇敢的行为。他对穆利根所感到的厌恶倘若不是纯粹出于恶意或嫉妒，骨子里究竟又有什么理由，就实在难以捉摸了。

Hard to believe, high-strung as he was. You cut a loud fart, he jumped three feet.

难以相信，他很容易激动，你放个屁，他就暴跳如雷。

Hard to believe, high-strung as he was. Cut a loud fart, he'd go three feet in the air.

难以想像他的那种极度紧张感，就是放一个响屁，都会把他惊的蹦起来。

You cut a loud fart, he jumped three feet.

难以相信，他很容易激动，你放个屁，他就暴跳如雷

Lightman: I've been cut loose many times, you know, when the truth was inconvenient.

有好几次，我都想放弃，你知道。当真相让人难以接受时。

Business's people. The activate phase and the final phase, institutionalization, tend to blur or run together whenever a business chooses a full cutover for all the users.

无论何时，一旦某公司为选择了一个全面的剪切策略，那么，激活阶段和最后的阶段常常会难以区分或是同时进行。

Drum-type gear can reduce driving noise of cyclecar, but it is difficult to be processed.

摘 要：为解决鼓形齿可以有效降低机动车传动噪声但难以加工的问题。

Firstly,driving forces equations of each driving pair of the whole mechanism are established by combining D'Alembert Principle with virtual displacement Principle.

然后利用虚设机构法建立机构中各杆件的速度、加速度的一、二阶影响系数矩阵，从而解决了少自由度关联机构惯性力求解中各杆件的速度和加速度难以求解的问题。

Because of Dagga's illness, the Glenns found it difficult, on an emotional level, to part with the semen.

对格伦夫妇来说和他们犬的精液分离在情感上是相当难以接受的。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。