教育部要一百万位学童洗他们的星期三的事件的手.The Education Ministry wants one million schoolchildren to wash their hands for Wednesday's event.例如, 一秒钟的声音需要一百万位的数字信息.For example, one second of sound takes up over a million bits of digital...
北极冻原是指北极点周边的地区,是世界最高的地方.The arctic tundra is at the top of the world around the North Pole.冻原天鹅的北美洲亚种,以其柔和的鸣叫著名.North American subspecies of tundra swan having a soft whistling note.由永久冻土组成的北极冻原正在逐渐融化.Permafrost - the fr...