One theory about the existence of extraterrestrial life rests on the presence of carbon compounds in meteorites.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.Methane may have extraterrestrial significance.甲烷具有星际意义.In going through the ea...
Huge balloons bobbed about in the sky above...一个个巨大的气球在头顶的蓝天中漂浮着。They decorated the room with flowers and balloons.他们用花和气球装饰了房间。Helium is a gas used in balloons.氦是一种用于气球的气体.The first vehicles to navigate the air were bal...
Her search for love has often caused her excruciating misery and loneliness.她对爱情的寻觅常常给她带来极大的痛苦和孤独感。Loneliness can be horrible, but it need not remain that way.孤独可能会很可怕，但也并非一定如此。Many deaf people have feelings of isolation...
Amazingly , it's called the Stardust Sample Allocation Subcommittee ( SSAS ).它叫“星尘号样品分配分委员会” ( SSAS ).The subcommittee's harrowing report was virtually ignored by the news media.委员会令人痛心的报告完全被新闻媒体所忽略.When in dou...
这一设计由淡色的3个长方形和3个三角形构成。This design is in pastel colours with three rectangles and three triangles.设长方形的宽是x米.Suppose the width of a rectangle is x metres.他们把那个长方形的硬木箱抬进厨房，放到桌上。They bore the oblong hardwood box into the kit...