在乙腈、聚乙二醇存在下, 用苯甲醚与硝酸铈铵反应合成了邻硝基苯甲醚.In the presence of ethanonitrile and glycol, anisole reacts with ammonium ceric nitrate to form o - nitroanisole.研究了五氯化钼参与的苯甲醚和叔丁醇在正己烷溶剂中的烷基化反应,结果显示出很高的对位选择性.The alkylation of anisole wi...
My hand shook so much that I could hardly hold the microphone.我的手抖得如此厉害，几乎都拿不住麦克风了。She bridled, then simply shook her head.她愤怒地昂起了头，然后就坚决地摇了摇头。He warmly shook hands with those gathered around the rostrum.他同聚集在演讲台四周的人热情握手...
A matter of repeated occurrence like this will not astonish people.这样司空见惯的事,不会使人吃惊.My news will astonish you.我的消息会让你感到十分惊讶的。He purposed to both charm and astonish me by his appearance.他是想以他的外貌让我着迷,使我吃惊....
他们用白漆标出了网球场的界线.They marked out the tennis court with white paint.界线在地图上区分得很清楚.The boundaries are clearly marked off on the map.这两种意见界线分明.There are no indecisive boundaries between the two opinions....
The length of the war is one of the biggest unknowns.战争要持续多久是最大的未知数之一。There are many unknowns in science.科学上还有许多未知之处.It was like a single equation with two unknowns.这挺像两个未知数组成了个简单方程....
Guanosine contents of Pinellia Rhizoma in the different habitats and the processed were determined by RP - HPLC.摘要采用 反相 高效液相色谱法测定不同生境半夏和炮制半夏中鸟嘌呤核苷的含量.The water - soluble guanosine in Pinellia ternate cultivated is simila...
'What a nice gentleman you are, to walk Hilary home,' her mother said.“您能送希拉里走回家，真是一位绅士，”她的母亲说道。Hilary went to the bank because she was short of money.希拉里上银行取钱,因为她缺钱用."What a nice gentleman you are, to walk Hil...
Aunt Emilie darned old socks.埃米莉姨妈织补旧袜子。Emilie: Well there are always youth hotels, and you can economize there.艾米莉: 你可以住在青年学舍,住那里很省钱的.Emilie: I suppose I'll be coming back. I just don't know when.艾米莉: 我想我会回来的....
那位演唱者的姐姐用钢琴给她伴奏.The singer was accompanied at / on the piano by her sister.这个节目评选出流行歌曲的最佳演唱者.The program searches for the best young singers of popular songs.演唱者由他的学生担任钢琴伴奏.The singer was accompanied at the piano by his ...