如拾地芥

Explanation: Picked up from the ground like a mustard. Analogy is very easy to get (more than refer to official, fame). 　　Usage: Verb-object type; as predicate, adverbial; analogy is very easy to get 　　Source: Han Ban Gu's "Han Jaap Shengchuan": "persons unknown disease after surgery; Gou Ming after surgery, bruising, such as Widespread access to their ear mustard."