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...
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....