Both animals and people were gasping for breath in the rarefied air.动物和人在稀薄的空气中都大口喘着气。rarefied hypersonic aerodynamics高超音速稀薄空气动力学rarefied-gas aerodynamics稀薄气体空气动力学...living at very high altitudes where the atmosphere is ...
成双的袜子是别在一起的.Pairs of socks are pinned together.有人擅长组织, 也有人甚至早上找不到成双的袜子.Some are excellent organizes, but some can't find a matching pair of socks in the morning....
If no agreement was reached, the army would step in.如果无法达成协议，军队将会介入。It was she who guided my every step in the working - class movement.是她在工人运动中指导我的每一步行动.We had to step in mud over our ankles.我们必须进入没脚的泥塘....