评估: to evaluate, to assess, assessment, evaluation...
用来: to be used for...
话筒: microphone, (telephone) receiver, handset...
七: seven, 7 七年 seven years...
难点: difficulty...
挂念: concerned...
原则: principle, doctrine...
工资: wages, pay...
次数: number of times, frequency, order number (in a series), power (math.), degree of a polynomial (math.)...
现实: reality, actuality, real, actual, realistic, pragmatic, materialistic, self-interested...
