[xiān lì]
precedent; previous case taken as example
									
										set a precedent; create a precedent
										开先例
									
									
									
										have a precedent to go by
										有先例可援
									
									
									
										create a precedent for ...
										为...创一先例
									
									
									
										historic precedent
										历史先例
									
									
									
										There is no lack of precedents in this connection.
										不乏先例。
									
									
									
										If he is allowed to do this, it will be a precedent for others.
										如果允许他这样做, 就会为别人开先例。