person的复数形式是什么？What is the plural of "person"?data在拉丁文中是datum的复数形式。"Data" is the Latin plural form of "datum".单词you可以是单数也可以是复数。The word "you" can be singular or plural....
In the circumstances he felt he'd been very restrained.在那种情况下，他觉得自己一直非常冷静。Her black suit was restrained and expensive.她的黑色套装简单而昂贵。Her manner was commendably restrained.她举止得体、有节，令人赞许。...
设计合成了用以检测过渡金属离子的荧光化学敏感器体系,它们是由1,8-萘二酰亚胺为荧光团,多胺衍生物为金属离子受体组成.A series of fluorescent chemosensors 1 - 3 were synthesized to detect transition metal ions....
Air raid wardens in tin hats self - importantly stalked the streets.空袭民防队员戴着钢盔神气活现地走在街上昂首阔步.The game wardens tranquillized the rhinoceros with a drugged dart.猎物保护区管理员用麻醉射器让犀牛静了下来.He came with two wardens and they thoroug...