根深蒂固deep-rooted (problem etc)

功败垂成fail when on verge of success

供不应求supply does not meet demand

归根到底to sum it up...

邯郸学步slavishly imitate others

和蔼可亲friendly and amicable;usually refers to an elderly person

后顾之忧fears of trouble in the rear;family worries (obstructing freedom of action);worries about the future consequences

互补长短make up for each other’s shortcomings

狐假虎威bully people by flaunting one’s powerful connections (lit. the fox exploits the tiger’s might)

囫囵吞枣lap up information without digesting it