萬事俱備,只欠東風 [ㄨㄢˋ ㄕˋ ㄐㄩˋ ㄅㄟˋ , ㄓˇ ㄑㄧㄢˋ ㄉㄨㄥ ㄈㄥ; wan4 shi4 ju4 bei4 , zhi3 qian4 dong1 feng1] lit. everything is ready, all we need is an east wind (idiom) fig. lacking only one tiny crucial item ◄ ►