短語詞組短語random motion sample 隨機運動樣本Random Censored Sample 隨機截尾子樣Random Interval Sample 隨機間隔樣本random truncation sample 隨機截尾樣本random probability sample 隨機概率抽樣random cluster sample 整群抽樣random plant sample 隨機植株樣本a random urine sample 隨機抽樣尿液樣本 返回 random sample