Cluster sampling
[計] 分組取樣, 聚類取樣\\n[經(jīng)] 成群選樣, 成串采樣
?? 詞語組成解析
cluster
['kl?st?]
n. 叢;簇，串;群;[語言]輔音群;
vi. 叢生;群聚;
vt. 使密集，使聚集;
sampling
['sɑ:mpli?, 's?-]
n. 抽樣;取樣;（樂曲的）節(jié)錄;選錄;
??? 情景例句
The only-child generation brings about many new social problems.
獨生子女一代帶來了許多新的社會問題。
Can't you fight, weakling?
你不能戰(zhàn)斗了？膽小鬼。
I'm tired of working all day.
整日工作使我厭煩。