吡喃不是芳香的, 但眬英嗡离子是.Pyran is not aromatic, but the phrylium ion is.报道了氯化锌催化合成正辛基 -D- 吡喃葡萄糖苷反应机理的研究,考察了影响产物构型的因素.The mechanism to synthesize the octyl - D - glucopyranoside catalyzed by zinc chloride is suggested.0.2%α - 吡喃酮...
I realise that an Englishman who generalises about Ireland invites trouble.我意识到英国人如果对爱尔兰问题加以泛化的话会招惹麻烦。A bad padlock invites a picklock.开门揖盗。 意思是挂锁失灵招撬窃.It boasts of avoiding dysmenorrhea and it invites Harisu to be adver...
The birds cling to the wall and nibble at the brickwork.鸟儿们紧贴在墙上，啄着砖缝。Instead of snacking on crisps and chocolate, nibble on celery or carrot.不要把薯片和巧克力当零食来吃，要吃些芹菜和胡萝卜。We each took a nibble.我们每人咬了一小口。...
Catholics pray to Mary as an intercessor.天主教徒向玛利亚祈祷，并把她看作仲裁者。At least nine out of ten Mexicans are baptised Catholics.墨西哥人至少有9/10是受洗的天主教徒。His early experience enabled him to break down barriers between Scottish Catholics...
I behaved with a politeness which seemed to disconcert him.我礼仪周到,这似乎使他不知所措.The events about to occur will disconcert others but not you.即将发生的事件s会 搅乱别人而不是你....