火星培训文案英语短句

Mars is one of the eight major planets of the solar system. It is the fourth planet in our solar system from inside to outside. It belongs to the terrestrial planet(类地行星). It has a diameter of about half of the earth. The period of its revolving on its axis, is similar to the earth, while the period of its orbiting around the sun is two times of the earth . The Orange red appearance is caused by iron oxide(氧化铁)on its surface. Mars is basically a desert planet with dunes(沙丘), gravels(砂砾) everywhere. There is no liquid water on Mars. With thin carbon dioxide and dust in the atmosphere it is cold and try all year round. In winter the cold temperature can reach minus 130 degrees centigrade while in summer time it can rise to 27 degrees Celsius. Strong sand storms visit this planet every year. The Martian poles have dry ice caps with seasonal fluctuation. Mars has two moons rotating around it. Mars can be seen by the human eyes and it is slightly darker than the Venus(金星) but much brighter than Jupiter(木星). The nearest distance from Mars to the earth is about 55 millions kilometers, while the farthest distance is about 400 million kilometers.

火星是太阳系九大行星之一，按离太阳由近到远的顺序，火星排在地球的后面，列为第四。它的平均直径为6790公里，约为地球直径的一半。它的密度也比地球小，为3.933克/立方厘米（地球为5.52克/立方厘米）。火星与太阳的平均距离为228000000公里，环绕太阳一圈约相当于地球上的687天。火星上的一天相当于地球上的24小时37分22.6秒，比地球的一天稍长一点儿。火星有两个小卫星：火卫一和火卫二。火星的自转轴同地球一样，也是倾斜的，同时因为它也具有大气，所以也和地球一样有四季节变化。火星表面的平均大气温度为零下23摄氏度。火星没有可检测出的磁场，连同它密度小的情况，可以认定它没有大型的金属内核Mars is one of the nine major planets of the solar system, according to from the sun by the near to far order, Mars row behind the earth, as the fourth. Its mean diameter is 6790 km, which is about half the diameter of the earth. Its density is smaller than the earth, 3.933 grams / cubic centimeter (the earth is 5.52 g / cm3). The average distance to Mars from the sun is 228000000 km, a ring around the sun, the equivalent of about 687 earth days. The day on Mars is equivalent to the earth in 24 hours 37 minutes and 22.6 seconds, slightly longer than the earth one day a little. Mars has two small moons Phobos and Deimos. The rotation shaft of Mars like the earth, is tilted, and because it also has an atmosphere, so it just like the earth there are four seasonal variation. The average air temperature of the surface of Mars to minus 23 degrees celsius. Mars has no detectable magnetic field, together with its density is small, can be concluded it had large metal core

Secret love is a silent pantomime,it will be a tnagedy if it is spoken out.暗恋是无声的哑剧，说出来就成了悲剧。