都, 都是（常用于书面语）

state, social class, degree, people, gradation, echelon, persuasion, position, order, class, remove, social status, notch, parity, social rank, sort, step, condition, rank, social station

一个社会中具有某种共同特征（地位、身份、财产等）的社会集团

successor

文化品德方面的修养

to take over (from those working the previous shift), to take over (in a leadership role etc), to succeed sb