Etherification of butanol with ethylene oxide by a new style solide acid catalyst is investigated.研究了丁醇和环氧乙烷在一种新型固体酸催化剂上的醚化反应.The purified rice amylose and amylopectins were obtained by n - butanol recrystallization meth...
He bought three dozen bottles of wine.他买了36瓶酒。A hundred and fifty empty bottles tumbled onto the floor.150个空瓶子滚落到地板上。Replace the caps on the bottles.把瓶盖重新盖上。Bottles and cans were hurled on the terraces by the mob...暴徒向看台...
The desire to be a mother may creep up on you unexpectedly.你会不知不觉地产生想当母亲的渴望。I would creep in and with stealthy footsteps explore the second-floor.我会偷偷溜进去，轻手轻脚地查看一下二楼。Back I go to the hotel and creep up to my room.我回到旅馆，蹑...
乔说话声音低沉粗嘎，带着中西部地区的腔调。Joe had a low, guttural voice with a mid-Western accent.这就是典型的中西部农村。This was quintessential Midwestern farming country.“ 中西部什么地方? ”" What part of the Middle West? "...