全心全意

Explanation: Put all their energy, it is not retained. 　　Usage: Joint type; as predicate, adverbial; with compliment 　　Source: Mao Dun, "advocating collection": "experience life, it should serve life, to look completely put together the theme of mind." 　　Examples: Zhang Side ~ the spirit of serving the people, it is worth our study. Thesaurus:  spare no effort; go all out; do one's best, turn out in full strength, exert, From all over the town Out, go full steam ahead