n. 统治者，管理者；尺子，直尺；（计算机屏幕的）标尺；划线板，划线的人；主导行星（对黄道十二宫图的宫、房子、生活等有特别影响的行星）
[
复数
rulers
]
词根：rule
adj.
ruling 统治的；主要的；支配的；流行的，普遍的
ruled 有横隔线的；有直线行的；受统治的
n.
rule 统治；规则
ruling 统治，支配；裁定
rulership 统治者的地位；职权或任期
v.
ruled 统治；裁决（rule的过去分词）
vi.
rule 统治；管辖；裁定
vt.
rule 统治；规定；管理；裁决；支配
1.Pat, this is my ruler.
帕特，这是我的尺子。
2.There are five markers and one ruler in the box.
盒子里有五支彩笔，一把尺子。
3.My ruler is broken.
我的尺子断了。
4.There has a pencil-box, an eraser, a book and a ruler.
这有一个铅笔盒、一块橡皮、一本书和一把尺子。
5.Monaco became familiar to Americans when its ruler, Prince Rainier, married the American actress Grace Kelly.
摩纳哥的统治者雷尼尔王子与美国女演员格蕾丝·凯利结婚后，美国人开始对摩纳哥这个国家熟悉起来。
6.The original elections were declared void by the former military ruler.
原来的选举被前军事首领宣布为无效。
7.He cracked me on the head with a ruler.
他用尺子猛击我的头部。
8.My daughter would not let the optician anywhere near her face with the small plastic ruler.
我女儿不让验光师拿着小塑料尺靠近她的脸。