高水平的华文讨论会不乏听众: high-level chinese forum draws the crowds
他的思维方法不乏条理性: there is no lack of method in his way of thinking
先例: precedent; previous case taken as example 短语和例子开先例 set a precedent; create a precedent; 有先例可援 have a precedent to go by; 为...创一先例 create a precedent for ...; 历史先例 historic precedent; 不乏先例。