To explain this, they hypothesise that galaxies must contain a great deal of missing matter which cannot be detected. 为了解释这一点，他们假定各星系一定包含了大量无法探测到的不明物质。
If you have varicose veins, consider wearing elastic support hose.如果患了静脉曲张，可以考虑穿弹力护腿袜。We betray the ideals of our country when we support capital punishment.如果我们支持死刑，那就背弃了我们立国的理念。The proposals deserve support as they giv...
An intelligent computer will be an indispensable diagnostic tool for doctors.智能计算机将成为医生不可或缺的诊断工具。The lack of good diagnostic test isn't fortunate.缺乏好的诊断性测试是不利的.Both electrocardiograms and electroencephalograms are i...
They passed the young Irishman, who looked after them with envious eyes.他们走过那个年轻的爱尔兰人, 他用妒忌的目光看着他们的背影....a big-hearted Irishman.一个善良的爱尔兰人Have you heard the one about the Irishman, the Englishman and the American?...你听过那个...
A maze of desires, emotions ripened prematurely languorous and listless moods, all written on my face.错综的心愿, 早熟的感情,太多冷漠的情绪, 全写在脸上.The illness left her feeling listless and depressed.那场病使她感到虚弱无力，提不起精神。She was very listles...
His spirit of being ready to take up the cudgels for a just cause is commendable.他那种见义勇为的精神是难能可贵的.Reason governs the wise man and cudgels the fool.理智管理智者,棒喝愚人.Raging, they came with cudgels and spears.愤怒的, 他们带著棍棒和矛....