I can't figure out what he was hinting at.我想不出他在暗示什么.I pouted my lips at him, hinting that he should speak first.我向他努了努嘴, 让他先说.What on earth are you hinting at?你到底在暗示什么?...
Decentralization and experimentation must be encouraged.必须鼓励权力下放和大胆尝试。experimentation with new teaching methods尝试新的教学方法The car for experimentation, is an embodiment of science and technology.试验用汽车是一种科学技术的体现....
A new type gemini surfactant was synthesized from 1,4 - butanediol , maleic anhydride and 1 - octadecanol.采用1,4- 丁二醇 、 马来酸酐及十八醇为主要原料,合成出一种双子表面活性剂1, 4- 丁二醇双琥珀酸十八醇双酯磺酸钠.The catalysis of big pore strong acid resin for 1, 4 ...