Ratio estimators
[经] 比率估计者
🧩 词语组成解析
ratio
['reiʃiəu]
n. 比，比率;比例;系数;
vt. 求出比值，除，使…成比例;将（相片）按比例放大[缩小];
估价员
🗣️ 情景例句
Mitchell is
Mitchell是
Don't bother me.
别惹我！
but the paper was wrapped round a drum which rotated slowly.
根但是纸是卷在慢慢旋转的圆筒上的。