class annual survey 中文意思是什麼
class annual survey
解釋
船級年檢-
A chinese middle class is defined by the survey as someone whose annual income ranges from $ 7, 500 to $ 25, 000 and who is between 20 to 49 years of age
該調查將年齡在20歲至49歲、年收入在7500美元至2 . 5萬美元之間的人定義為「中產階層」 。
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