自不量力

Explanation: Volume measure. They do not assess their abilities. Refers to overestimate their own strength. 　　Usage: Main predicate; as predicate, object; containing derogatory 　　Source: "Warring States policy three" Jing is very solid, but not the amount of SIT its force. " 　　Examples: We are lucky enough to say successful candidates ranked superior, not genuine talent, dare ~, pretend to talk about the text. ★ "mirror" the eighty-seventh back 　　Results: To egg catapult; duck pull carts; Tangbidangche 　　Postscript: To egg catapult; duck pull carts; Tangbidangche Thesaurus:  Pi Fu regret tree, Lisuo cannot, kick against the pricks, Pi Fu Tai Basin, Pi Fu shake the tree, Mantis arm when the car, Tarzan Egg press, like an egg knocking itself against a stone, Ant Shake the tree