1. Katherine S. Pollard is a biostatistician at the University of California, San Francisco. 波拉德是美国加州大学旧金山分校的生物统计学家。
2. Next day he moved into a pollard willow near the lake, frightening the wild ducks and the water rats. 第二天他迁进湖边一棵已经去掉树梢的杨柳树里，吓着了野鸭子和水鼠。
3. Just in front of the window stood a row of pollard-trees, black on one side, silvery bright on the other. 紧靠着窗前有一排已经修剪的树木，一边呈露暗黑色，另一边闪耀着银光。
英英解释
n.
1. a tree with limbs cut back to promote a more bushy growth of foliage
2. a usually horned animal that as either shed its horns or had them removed v.
1. convert into a pollard
