一熏一莸

Explanation: Incense grass; Caryopteris foul grass. Good analogy is often overshadowed by evil. 　　Usage: Joint type; as object, attribute; with derogatory 　　Source: Qin Zuo Qiuming "Zuo Xi public four-year" one smoked a Caryopteris, still worse than a bad decade. " 　　Examples: ~, Qi can not be good with his tools. ★ Tang Quan, "Lu Xuan Gonghan Court Preface"