The case against is twofold: too risky and too expensive.反对理由有两点：太冒险而且太昂贵。a twofold rise in prices价格上涨一倍The problem was twofold.这个问题分两个部分。The value of the new Cordinate Systems and surfaces is twofold.新坐标系和坐标曲面的价值是双重的....
The value of this work experience should not be underestimated.这种工作经验的重要性不应该被低估。The country'sleadership had underestimated the depth of the crisis.该国领导人低估了这场危机的严重性。They underestimated his abilities.他们过低估计了他的才能....
The Washougal empties into the Columbia River near Portland.沃舒格尔河在波特兰附近注入哥伦比亚河。The river Ganges empties itself into the Bay of Bengal.恒河流入孟加拉湾.The Changjiang River empties into the East China Sea.长江注入东海....
Prof. John Willis is our teacher of English.约翰·威利斯教授是我们的英语老师.I got into our dinghy while Willis took the helm and positioned the boat for the photograph.我钻进我们的小艇，威利斯掌舵，将船摆好位置准备拍照。Now, Mr. Willis . I'm sure that won&...
这位作家打算把悲惨结局的悬念一直保留到最后。The author's intention is to keep everyone guessing until the bitter end.与原书比起来,电影版需要带给观众更多的悬念.The film version requires greater suspension of disbelief than the book.导演用巧妙手法引起观众的悬念.The directo...
The hydroxyl groups can be changed into esters , ethers , acetals and ketals, etc.最常用的羟基保护基可归纳为三类:酯类 、 醚类和缩醛或缩酮类.Eight acetals ( Ketals ) were synthesized under the optimal conditions.在最佳条件下,合成了八个缩醛 ( 酮 ) 化合物.The yields ...