缩头缩脑

Explanation: Described afraid to move forward, or timid and afraid to speak out responsibility. 　　Usage: Joint type; as predicate, object, adverbial; containing derogatory 　　Source: Lu Xun's "canopy _set_ of" hitting the wall "after": "But I also note a few reasons why I come to the school and asked the school authorities to answer to today's fainthearted approach." 　　Results: Case of hail the turtle ashore 　　Postscript: Case of hail the turtle ashore Thesaurus:  timid, chicken careful about minute details