Stratified random sampling
[經] 分層隨機抽樣
?? 詞語組成解析
a. 分層的；形成階層的；分為不同等級的
random
['r?nd?m]
adj. 任意的;隨機的;胡亂的;
n. 隨意;偶然的行動;
sampling
['sɑ:mpli?, 's?-]
n. 抽樣;取樣;（樂曲的）節錄;選錄;
??? 情景例句
She says
她也談起
A good lawyer,an evil neighbour.
好律師不是好鄰居。
and shows no signs at present of ceasing to rise.
并且目前尚無停止上升的跡象，