We know about magnetism by the way magnets act.我们通过磁铁的作用知道磁性是怎么一回事.The N pole and S pole of two magnets will attract each other.两个磁体的N极和S极互相吸引.The entire ring has about 1000 magnets spaced at regular intervals.整个圆环由大约100...
The field may be provided by permanent magnets or by electromagnets.外地可能提供的永磁材料,或由电磁铁.The rails of their Maglev train were made of about 100 magnets.他们所做的磁悬浮列车轨道采用了约100块磁铁.Magnets are used for the controller's attac...
We all love to frighten the pants off ourselves by going on hair-raising rides at funfairs.我们都喜欢乘坐游乐场那些让人毛发直竖的游乐设施，把自己吓得魂不附体。We all love to frighten ourselves by going on hair-raising rides at funfairs.我们都喜欢坐上游艺节惊险刺激的乘骑设...
...an officer who advises undergraduates on money matters...为本科生们提供理财建议的高级职员One in five undergraduates cannot write grammatically.有1/5的本科生写作不合语法规则。All undergraduates reading English attend a turtorial group each week.所有攻...
刚出首都，总统无人护卫的汽车就遭到了伏击。The President's unescorted vehicle was ambushed just outside the capital.他们在一些士兵的护卫下旅行.They traveled under the protection of a number of soldiers.警察是法律和秩序的护卫者.The police are guardians of law and...