1、rule vt.&vi.统治；支配；管辖 n.规则；习惯；统治
rule a country统治国家
rule oneself克制自己
keep/obey the rule遵守规则
break the rule违反规则
as a rule通常，一般说来
by rule按照规则
out of rule与习俗相悖
make it a rule to do sth. 习惯做某事，经常做某事
The governor ruled the country with a firm hand. 统治者以铁的手腕统治着这个国家。
2、request n.&vt.请求，要求
request sth. of/from sb. 向某人请求某物
request sb. to do sth. 请求某人做某事
request that-clause请求……
at one’s request 应某人之请求
at the request of sb. 应某人之请求
be in request 有需要，受欢迎
on/upon request一经请求
The teacher requested all the students (should) finish the exercises before the class was over.老师要求所有的学生应在下课前完成作业。
3、command n.命令，指令，掌握 vt.&vi.命令，指挥，支配
at one's command随心所欲地（的）
be in command of... 统帅……
be under one's command由……指挥
be under the command of... 由……指挥
command sb. to do sth. 命令某人做某事
command that-clause命令某事(从句用虚拟语气，谓语部分用“should( not)+动词原形”，should可以省略）
have (a) good command of... 精通……
He has (a) good command of the French language. 他精通法语。
4、polite adj.有礼貌的；客气的
be polite to sb. 对某人有礼貌
it is polite of sb. to do sth. 某人做某事是有礼貌的
polite in manners举止优雅
naturally polite 自然而有礼貌的
You accepted my offer just to be polite, didn't you? 你接受我的援助只是出于礼貌，对吗？
5、direction n. 方向；指导；指示（常用复数）；说明书
in one direction朝某一方向
in all directions朝四面八方
under the direction of sb.在某人的指导下
under one's direction在某人的指导下
in/from the direction of朝着（来自）……方向
according to one's directions根据某人的指示
follow/obey/listen to one's direction听从某人的教导
keep sb.’s directions in mind记住某人的指示
The frightened child ran in the direction of his mother. 那个受惊吓的孩子朝他母亲那里跑去。
