Can I bum a cigarette off you?可以向您要支烟吗?Why don’t you stop behaving like a bum and get this place cleaned up?你不要再像一个懒鬼的样子，赶紧把这地方收拾一下好吗？He looks like a bum who's been drowning his sorrows in sleazy dives.他看起来象个游手好闲之辈,...
El Salvador produces 100,000 tons of refined copper annually.萨尔瓦多每年生产10万吨纯铜。This technique is becoming more refined and more acceptable all the time.这种技术变得越来越完善，越来越受人欢迎。His speech and manner are refined.他谈吐优雅，彬彬有礼。...
...an amphibious landing craft which can carry helicopters and up to 2,000 troops.能运送直升机和多达两千人的部队的水陆两用登陆艇A third brigade is at sea, ready for an amphibious assault.还有一个旅已在海上待命，准备两栖进攻。At last I found this amphibious creat...
Objective To optimize the the NADPgenerating fluorimetric method for aldose reductase ( AR ) activity.目的找出优化NADP生成 荧光法测定红细胞醛糖还原酶 ( AR ) 活性的方案.It is classified as an aldose , a designation for sugars containing an aldehyd...