中国是北韩最重要的援助和必需品的供应国.China is North Korea's most important supplier of aid and essential goods.伊朗取代阿曼成为中国进口原油的最大供应国.Iran replaced Oman as the largest crude supplier.专家指出,澳大利亚是世界上众多小麦供应国中的一员.Expers note that Austrilia...
不含碱性氮的化合物包括吡咯 、 吲哚 、 咔唑和苯咔唑.Non - basic nitrogen - containing series include pyrroles, indoles, carbazoles and benzcarbazoles.吡咯, 噻酚和呋喃的情况就是这样.Such is the case in pyrrole, thiophene, and furan.以电化方法在ITO 导电玻璃 基体上制备聚合物聚吡咯薄...
The prose of his official communications was so laboured, pompous and verbose...他笔下的公文矫揉浮华，长篇大论。He has an inimitably verbose style.他写的东西有一种无比冗长啰嗦的风格.What he had to say was confused, halting, and verbose.他说的这些话既杂乱无章 、 吞吞吐...