Obama had trouble winning working class support in his primary battles with former rival Hillary Clinton, but pollster Clay Richards says he appears to be making some inroads.
奥巴马与前竞争对手希拉里·克林顿进行初选之战时，他很难获得工薪阶层的支持，但民意测验专家ClayRichards说，奥巴马在这方面已经有所改善。
The roof of the Primary School was pulled away from the learning space of the interior though, and a perforated clay ceiling with ample ventilation was introduced.
小学的屋顶远离内部的学习空间，通过多孔粘土天花板来为屋顶提供足够的通风。
Stone and clay were the primary masonry materials in the Middle Ages and later.
石头与黏土是中世纪和后来主要的砖石工艺材料。
Combining literature, dictating materials and field research, this essay points out and proves a new view that Shuigang Shan is the place which was the primary site for gathering the porcelain clay.
该文综合利用文献、口述资料和通过实地调研，提出并证明了“水缸山是宋代笔架山潮州窑主要的瓷土采集地”的新观点。
To work with clay is to go back to a primary way of expression through the most simple and noble material on earth.
与陶泥的交融就是回归原始，通过世界上最简单却最神圣的材料表达思想的过程。
Shale and clay volumes are primary parameters in reservoir evaluation, but it is very difficult to improve their precision greatly.
泥质和粘土含量是储层评价中很关键的参数，但是其解释精度一直难有很大的提高。
The purple clay teapot culture has deep connotation in Chinese food culture, but few has done systematic and thorough research. There are three primary reasons.
中华食品文化中的紫砂茶具文化内涵深邃，较少有人做系统而深入的研究。
The purple clay teapot culture has deep connotation in Chinese food culture, but few has done systematic and thorough research. There are three primary reasons.
中华食品文化中的紫砂茶具文化内涵深邃，较少有人做系统而深入的研究。
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