21/200Flying over a desert area in an airplane, two scientists looked down with trained eyes at trees and bushes. After an hour’s flight one of the scientists wrote in his book, ’Look here for pro
22/200In the United States, it is not customary to telephone somenone very early in the morning. If you telephone him early in the day, while he is shaving or having breakfast, the time of the call sh
24/200The accuracy of cientific observations and calculations is always at the mercy of the scientist’s timekeeping methods. For this reason,scientists are interested in devices that give promise of
23/200Liberia, the oldest independent Negro state in West A frica, has been struggling for survial ever since its foundation in 1822.Progress has been hampered by constant hostility between the Americ
25/200Kite flying is the sport of sending up into the air,by means of the wind , a light frame covered with paper,plastic or cloth. The frame can be one of many different shapes and is attached to a l
26/200Accreditation is a system for setting national standards of quality in education. The United States is unique in the would because its accreditation system is not administered by the government
27/200Personality is , to large extent,inherent ——A-type parents usually bring about A-type offspring.But the environment must also have a profound effect,since if competition is improtant to the
请将下面这段话翻译成英文：燃放鞭炮放鞭炮曾是春节庆祝活动中最重要的习俗之一。然而，担心燃放鞭炮可能会带来危险和烦人的噪音，政府已在许
请将下面这段话翻译成英文：熬夜（“守岁”）守岁意味着除夕夜不睡觉。年夜饭后，家人聚坐一起，愉快聊天，等待春节的到来。年夜饭春节是与家
请将下面这段话翻译成英文：压岁钱这是孩子们的父母和祖父母给他们作为春节礼物的钱。压岁钱据说能带来好运，能驱魔;因此，就有了“压岁钱”的