begin well but fall off toward the close; have a beginning but no end; leave sth half done; start off but never finish;/那只不过是一个～的计划。That was only an unfinished plan.
有头无尾you tou wu wei
have a beginning but no end
有头无尾
have a beginning but no end;start sth but not finish it
有头无尾yǒu tóu wú wěi
形容做事半途而废，不能坚持下去。start off but never finish, have a beginning but no end, begin well but fall off towards the close