good turn
n. 善意的行为, 恩惠
例句与用法：
The interview served Michael the good turn of taking his thoughts of himself.
这场会谈对于迈克尔很有好处，使他不再顾虑自己的事。
I was going to buy some bedding plants at the supermarket but Roy did me a good turn and told me about a garden center where I could get them much cheaper.
我想去超级市场买一些适于花坛种植的花草，但罗伊告诉我在一个花木中心可以买到更便宜的花草，他的话于我非常有利。