我走出门，竖起衣领抵御冷雾。I stepped outside and pulled up my collar against the cold mist.所有的人都竖起耳朵听楼梯上传来的脚步声。All ears were cocked for the footsteps on the stairs.你不得不对她维护正义的勇气竖起大拇指。You have to give her top marks for moral guts....
聚羟基乙酸的经典制备方法主要有两种:直接缩合聚合法和乙交酯开环聚合法.There are two means available for the preparation of PGA - synthesis polymerization and ring - opening polymerization....
They were comparing notes on each other's progress towards solving that most taxing of all puzzles: the riddle of the human genome.他们就解决人类所面临的最大难题，即人类基因组之谜的进展情况交换了意见。Genome - based Celera Genomics, the private compa...