人体骨架是由依靠韧带连接的形状相异的骨头构成。The skeleton consists of differently shaped bones held together by ligaments.这两个过程是相互连接的。The two processes are interlinked.受伤后骨的关节不如从前连接的好.After the injury the bones did not articulate as well as b...
We must supersede old machines by new ones.我们必须以新机器取代旧机器。The use of robots will someday supersede manual labor.机器人的使用有一天会取代人力.We must supersede old machines by [ with ] new ones.我们必须以新机器取代旧机器....
化学家能把一种药物的各种成分分解出来.A chemist can separate a medicine into its components.化学家用电解法把水还原为氢.The chemist reduced water by electrolysis.了解这些稀有分子能帮助化学家找到可实现的目标。Understanding these rare molecules will help chemists to find out wh...