After twenty-four hours of fighting, the remnants of the force were fleeing.戰斗持續了24個小時后，該部隊殘部打算溜掉。Press reports said that 65mm of water fell in twenty four hours.媒體報道稱24小時內的降雨量達到了65毫米。The Egyptians probably measured thei...
Through nitrosation , hydrogenate reducion, and acylate three steps, the yield surpass 80 % for the diethyl malonate.收率相對于丙二酸二乙酯達到了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.今天晚上我們辯論的課題是軟毒品合法化.Marshal your arguments before debating.辯論前整理一下你的論點.We're just debating what to do next.我們正在討論下一步該做什么事....