After twenty-four hours of fighting, the remnants of the force were fleeing.战斗持续了24个小时后，该部队残部打算溜掉。Press reports said that 65mm of water fell in twenty four hours.媒体报道称24小时内的降雨量达到了65毫米。The Egyptians probably measured thei...
Through nitrosation , hydrogenate reducion, and acylate three steps, the yield surpass 80 % for the diethyl malonate.收率相对于丙二酸二乙酯达到了80%以上.The necessary material of 2 - ( 2 - methoethyl ) acetaldehyde diethyl acetal was sy...
This evening we're debating the issue of the legalization of soft drugs.今天晚上我们辩论的课题是软毒品合法化.Marshal your arguments before debating.辩论前整理一下你的论点.We're just debating what to do next.我们正在讨论下一步该做什么事....