出处：按学科分类—语言、文字 中国对外翻译出版公司《汉英成语词典》第296页（207字）
比喻不成才或没出息，例每个人都要确定自己的人生目标，切莫不稂不莠，蹉跎一生。
Each person has to decide what his or her objective is in life；beware of drifting and ending up as a good-for-nothing．