Quinine: Alkaloid found in the bark of cinchona trees and shrubs.奎宁: 金鸡纳树皮中的生物碱,主要用于治疗疟疾.Colombian tree; source of Cartagena bark ( a cinchona bark ) .哥伦比亚树种; 卡塔赫 那的金鸡纳树种.Nearby grew a tree, nowadays known as Cinchona.附近...
对这件事情反应最强烈的是我的校工.No one felt more strongly about it than my scout.事实上,遇到这种宴会,总要给校工一笔小费.There was in fact a recognized tariff for the scout on such occasion.还是说你们家只是整理草坪的校工?Or did your folks just do the lawns?...
用煤作燃料的火力发电站的成本有望降低。The cost of electricity from coal-fired stations is expected to fall.然而他的证词只是新一轮唇枪舌剑中的一股火力。His testimony, however, was only one in a salvo of new attacks.他的车遭到自动武器火力的扫射。His car was raked with fire from...
The space telescope has taken the clearest pictures ever of Pluto.太空望远镜拍摄到了迄今为止最清晰的冥王星的照片。to look at the stars through a telescope用望远镜观察星星With a telescope you can see the huge crater of Ve - suvius.用望远镜你能看到巨大的维苏威火山口....