有困难的

The propagation of partially coherent beams through an apertured paraxial ABCD optical system is an interesting but difficult problem encountered in practice.

部分相干光通过受光阑限制近轴ABCD光学系统传输是实际工作中一个十分有意义却是很困难的问题。

A philanthropist is a rich person who uses money to help people who are in trouble or in poor situation.

慈善家是指富有的人，他们用金钱帮助有困难或者处于贫穷状态的人。

If you have difficulty keeping count, photocopy and color in your pattern as you go.

如果您有困难维持数，复印和彩色的图案，当您去。

If you have difficulty ke eping count, photocopy and color in your pattern as you go.

如果您有困难维持数，复印和彩色的图案，当您去。

I had enough, so I think after the first pit stop it wasn't too difficult.

我有足够的优势，所以在第一次进站之后比赛就不是太困难了。

Positive outcomes can be a difficult sell when juxtaposed with tax cuts,pothole repairs,airport security,and defense spending,But there is good reason to believe that attention to positive outcomes has the additional effect of educing negative outcomes.

积极的成果可以是一个困难的时候出售并列减税，坑洞维修，机场安全，国防开支，但有理由相信，注意积极成果有更多的负面影响引出的搜索outcomes。

I always have difficulty in pronouncing new words.

对新单词的发音我总是有困难。

Its nose had a purulent discharge and it was breathing rapidly.

鼻子流出些微液体，而且有呼吸困难的现象。

If you have difficulty keeping co unt, photo co py and co lor in your pattern as you go.

如果您有困难维持数，复印和彩色的图案，当您去。

It is very hard to realize just how big the Great Pyramid is.

要弄清大金字塔到底有多大，是很困难的。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。