Cluster sampling
[计] 分组取样, 聚类取样\\n[经] 成群选样, 成串采样
🧩 词语组成解析
cluster
['klʌstɚ]
n. 丛;簇，串;群;[语言]辅音群;
vi. 丛生;群聚;
vt. 使密集，使聚集;
sampling
['sɑ:mpliŋ, 'sæ-]
n. 抽样;取样;（乐曲的）节录;选录;
🗣️ 情景例句
and we have Popo the Clown to entertain you.
我们请了小丑Popo来给大家表演助兴。
I ask him to do the washing now.
我要求他现在做洗涤工作。
In 1948, he went to Lake Kivu in the Congo to observe a new volcano which he later named Kituro.
1948年他去了刚果的基伍湖，对一座后来被他命名为基图罗的新火山进行观察。