ruler 尺子
拆分：ru 如拼音，le 乐拼音，r 像草
记忆：尺子如果快乐就能变成小草
（图片来自网络侵删）
ruler
n.统治者;支配者;直尺
复数： rulers
相关介绍He cracked me on the head with a ruler.
他用尺子猛击我的头部。
The original elections were declared void by the former military ruler
前军事领导人宣布最初的选举无效。
The present ruler, Prince Rainier III, succeeded to the throne on 9 May 1949.
现任元首，兰尼埃三世亲王于1949年5月9日继位。
