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retainer ri'teinә

GRE 柯林斯1⭐

释义

n. 家臣, 侍从, 保持者
[化] 保持器; 定位器; 隔栅; 隔环; 护圈; 止动器; 止动装置

英文释义

n. a fee charged in advance to retain the services of someone
n. a dental appliance that holds teeth (or a prosthesis) in position after orthodontic treatment

词形变化

复数: retainers

BNC词频排名: 14,524 | 当代语料库词频排名: 17,162