A2 noun /ˈruːlər/
ruler
统治者; 尺子
Meaning
A person who governs or controls a country; a straight-edged tool used for measuring or drawing lines
Example
The ruler drew a straight line on the paper while the king was a powerful ruler of his kingdom.
鲁勒在纸上画了一条直线,而国王是他王国的强大统治者。