莫莉已经努力克服了对飞行的恐惧。Molly had fought and overcome her fear of flying.载人宇宙飞行的前景看上去充满了越来越多的变数。The future for manned space flight is looking increasingly uncertain.蝙蝠是唯一的有翅膀且能持续飞行的哺乳动物.Bats are the only mammals to have wings an...
讨论了用钒钛微合金化研制成的高抗震性能结构钢在抗震设计中的应用前景.Prospect of application of the high earthquake resistant steel containing micro vanadium - titanium in - seismic design is discussed.讨论铬微合金化对大规格高碳钢线材质量的影响.The influence of Cr microalloyi...
The old letters brought many recollections to my mind.这些以前的信件使我忆起许多往事.Recollections of past troubles flooded back on me.这个别离,把过去一切的苦楚都压过去了.The sight brought back to his mind a rush of childish recollections.眼前的景色猛地又使他想起童...