Stratified sample
分层取样; 定样
🧩 词语组成解析
a. 分层的；形成阶层的；分为不同等级的
sample
['sæmpl]
n. 样品，华样;标本，榜样;（化验的）取样;[信]信号瞬时值;
vt. 取…的样品，尤指用样品来检验;品尝;抽样调查;
adj. 作为代表或范例的;
s分开+ample拿，获得→分开拿出→标本,样品
🗣️ 情景例句
I'm stressed out. I need a vacation.
我筋疲力尽了，我要休假！
What's matter with you?
你有什么问题吗？
Annie was among the first to realize that blind people never know their hidden strength until they are treated like normal human beings.
盲人只有受到同正常人一样的待遇时，才能知道自己蕴藏的力量，安妮就是其中一位最先有此种认识的人。