The imidazoline was synthesized from black acid liquid.以酸性黑油为原料合成咪唑啉.Then the imidazoline boric acid ester was synthesized when the intermediate reacts boric acid.采用两步法合成月桂酸味唑啉硼酸酯....
His workday starts at 3.30 a.m. and lasts 12 hours.他凌晨3点半开始工作，一直持续12小时。She wore workday clothes.她穿着平时穿的服装。He put in a long workday.他那一天工作了很长时间。This hands-on management approach often stretches his workday from 6 a.m. to ...
Calling her by her real name had always been one of his teases.他一直把称呼她的真名当作一种取乐。My boyfriend's brother is really out of it; he always teases us.我男友的弟弟很无聊; 他总是捉弄我们.The little boy teases for ice - cream.小男孩不住地吵着要买冰淇淋....
Just then, Bart returned, wobbling on his skates.就在这时，巴特摇摇晃晃地滑着轮滑回来了。a pair of roller skates一双旱冰鞋Take your skates in case you decide to go skating.把溜冰鞋带去,说不定你们要溜冰呢....
他将心脏比作打气筒(抽水机)有助于孩子们了解心脏的作用.His comparison of the heart to a pump helped the children understand its action.她用自行车打气筒给瘪了的轮胎打气.She blow up the flat tyre with a bicycle pump.我要替脚踏车打气,可以借我打气筒 吗 ?Can you lend me a pump to blo...