Penicillin was an extremely significant medical discovery.青霉素是极其重要的医学发现.The laxity of export control authorities has made a significant contribution to the problem.出口控制部门工作懈怠，是造成此问题的重要原因。There were no significant differe...
The Sussex ironworks were carried on at such a prodigious expense of wood.苏塞克斯铁厂象这样办下去使木材造成如此惊人的耗费.Reporter discovery, lock of gate of ironworks of golden coin steel.记者发现, 金泉钢铁厂大门紧闭.Ironworks of 3 bright steel is enterpr...