地球外存在生命的理论是基于陨星上存在碳化合物质这一事实的.One theory about the existence of extraterrestrial life rests on the presence of carbon compounds in meteorites.据说这枚陨星是在热分解的化学过程中形成的。It is said that the magnetite was formed by a chemical pro...
...the seesaw way of politics.政治上的拉锯战Marriage, however, is an emotional seesaw.然而婚姻是一块感情跷跷板。Let's play on the seesaw jungle gym rocker swing merry - go - around slide.我们一起玩跷跷板攀登梯摇床秋千 转椅 滑梯吧.Prices have gone up ...