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
And Richard thanks you.
Richard也会感谢你。
I'm too hungry.
我太俄。
It was noticed that there were no signs or warnings on the supply lines that ran round the port.
人们这才注意到，铺设在码头周围的供应管道上没有贴标签或告示。