1.
Dilemma Zone-oriented Actuated Signal Control
两难区安全改善问题的感应控制方法研究
2.
It' s difficult to tell the two brothers apart.
这两兄弟很难区分开。
3.
It's difficult to draw a distinction Between the meanings of these two verbs
这两个动词的词义很难区别。
4.
It's difficult to discriminate between two such obviously fine instruments.
这两种显然都很好的仪表，很难区分其优劣。
5.
The two sisters are so alike that people can hardly distinguish one from the other.
那两姐妹非常相像,人们很难把她俩区分开来。
6.
Even when magnified, the two organisms are difficult to tell apart.
即使放大之后，这两种有机体也难以区分。
7.
The two sisters are so alike that people can hardly distinguish one from the other
那两姊妹非常相像,人们很难把她俩区分开来
8.
Security Delimma and Regional Cooperation: Tactic Choices of China, Japan and South Korea;
“安全两难”与区域合作:中日韩三国的战略选择
9.
Impartiality in exams or in areas: a dilemma in matriculation;
考试公平与区域公平:高考录取中的两难选择
10.
hold a wolf by the ears
骑虎难下，进退两难
11.
Roads were dusty tracks scarely discernible from the adjacent desert.
道路是尘土覆盖的小道,几乎难以跟两边的沙漠区分开来。
12.
We found it difficult to distinguish between the two dogs, so nearly alike they were.
我们发现很难区分这两条狗，他们几乎是一模一样。
13.
The Dilemma for the Water Source Region of the Middle Route of South-to-North Water Transfer Project and the Establishment of Benefit Compensation Mechanism;
南水北调中线水源保护区两难困境与利益补偿机制探讨
14.
Thoughts on the Solution of the "Two Hard" Situation in the Medical Higher Education in the Remote Areas;
对缓解基层和偏远地区医科高等教育两难境地的思考
15.
bi-communal, bi-zonal federation
两族两区联邦（制）
16.
On Web pages, anything more than two navigation areas and one content area begins to get busy.
在网页上，任何超出两个导航区域和一个内容区域的页面将会难以导航。
17.
two hours of unrelieved tedium
烦闷难解的两小时.
18.
It is really a dilemma.
这真是一个两难的选择。