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新东方-柯林斯雅思备考词典
ruler
英 [ˈruːlə]
[NOUN]
rulers
1. [C 可数名词] 统治者
The ruler of a country is the person who rules the country.
双语例句
例：The former military ruler of Lesotho has been placed under house arrest.
莱索托前军事统治者已被软禁了。
2. [C 可数名词] 尺
A ruler is a long, flat piece of wood, metal, or plastic with straight edges marked in inches or centimetres. Rulers are used to measure things and to draw straight lines.
双语例句
例：a twelve-inch ruler.
一把12英寸长的尺子。