Draw a line with a ruler.用尺子画一条线。 I don't draw straight lines without a ruler.没有尺我画不成直线。 Is this ruler graduated in centimetres?这尺子是以厘米为刻度吗? Reach over my shoulder and you can pick up the ruler from the table.你从我肩上伸过手去，就可以从桌上拿到直尺了。 This ruler has one scale in centimetres and another in inches.这尺子上有一个公分的刻度和一个英寸的刻度。 The ruler abdicated himself from the government.那位统治者从政府中退位了。 A wise ruler is generous in victory.明智的统治者对待被击败的敌人是宽大的。 He was once a potent ruler.他曾经是有权势的统治者。 The queen of England is a hereditary ruler.英国女王是世袭的统治者。 He became that country's ruler both in name and in reality.他成了该国名义上和事实上的统治者。 Her brother is the king, but she is the effective ruler.她兄弟为国王，但她却是真正的主宰者。 He was the ruler of the country.他是一国之君。 In Greek mythology, Zeus was the ruler of Gods and men.在希腊神话中，宙斯是众神和人类的统治者。 His ambition became the ruler of his life.野心支配了他的一生。