He thinks he can find a way to vaccinate the elephants from a safe distance.他认为自己能找到一种从安全距离给大象接种疫苗的方法。Q: What else do we need to do besides vaccinate?问: 除了提供疫苗之外,我们还需要做什麽?Beyond plan of children vaccinate vaccine even wh...
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 ...