do somebody a good/bad turnHELPto do something that is helpful or unhelpful for someone 做有利于/有损于某人的事 You did me a good turn by driving Max home last night. 你昨晚开车送马克斯回家,真是帮了我大忙。
do somebody a good/bad turn• She was only trying to do James a good turn.
→ do somebody a good/bad turn at turn2(8)