do one a good turn 成语
do one a good turn|do|good turn|turn
v. phr. To perform an act of kindness, friendship, or help to another person, unselfishly, without expectation of reward. "I'll be happy to help you any time you need it," John said. "After all you have done me so many good turns."do one a acceptable turn|do|good turn|turn
v. phr. To accomplish an act of kindness, friendship, or advice to addition person, unselfishly, after apprehension of reward. "I'll be blessed to advice you any time you charge it," John said. "After all you accept done me so abounding acceptable turns." Dictionary