1N-COUNT [oft with poss]统治者;管理者;治理者 The ruler of a country is the person who rules the country. 统治者;管理者;治理者
...the former military ruler of Lesotho. [+ of]
莱索托的前军事统治者
He was a weak-willed and indecisive ruler.
他是一位意志薄弱、优柔寡断的统治者。
2N-COUNT 尺;直尺 A ruler is a long flat piece of wood, metal, or plastic with straight edges marked in centimetres or inches. Rulers are used to measure things and to draw straight lines. 尺;直尺