Wallis spoke glowingly about players like Chapman.沃利斯对查普曼这样的选手大加赞赏。Here lie the mortal remains of George Chapman, eg as an inscription on a tombstone.乔治.查普曼的遗体葬于此处(如墓碑上的志文).[ Man On P . A . ] Ladies and gentlemen, Happy ...
亚胺基杂环丙烷季铵盐的阳离子,一定是按协同反应的方式开环的.The aziridinium ions must all be opened by a concerted process.阳离子表面活性剂通常为季铵盐类.Cationics are usually quaternary ammomium salts.反 离子通常是钠, 钾和铵.The usual counter - ions are sodium, potassium an...
call on的近义词有:call on, see, visit, drop in。下面这些动词或词组均含有"拜访,访问"的含义:call on:社交上的正式用语,指无目的、礼节性的短暂拜访,访问者与被访问者之间一般只有社交或公务关系。see:常用词,含义广泛,既可指接受他人来访,又可指去访问他人。visit:正式用词,强调出于工作需要的访问,也指亲戚朋友间的看望。drop in:多指在计划之外或事先未打招呼的偶然、顺便访问。也可指参观...