Effective chemistry learning strategies can help students out the dilemma in chemistry learning and improve their academic achievements.
有效的化学学习策略能够显著提高化学学习成绩，改善学生学习化学的困境。
The dilemma for present higher-learning journals is the reflection both non-clear academic system and the major construction issues which are of course, the pattern of editing and journal quality.
高校学报当前的困境，既是学术体制不顺的表现，也是高校自身专业建设问题的反映，当然其中也包括学报办刊体制与刊物质量保障机制不健全的因素。
It is five years for our institutes of higher learning to set up on trialing the sports teams, some of them are successful some in a dilemma.
我国高校试办高水平运动队已近五年，有些院校成功了，也有些院校遇到困难处于进退两难的境况。
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