Shoes are no good if they let in water. 鞋子如果透水的话就太差了。
Food aid isn't much good until the fighting stops. 在战斗停止之前，食物援助是没有太大用处的。
"How about this bag?" "That's no good - it's too small."
The software isn't much good either.
It's a nice warm jacket but it's no good when it's raining.
This oil works well in salad dressings but it isn't any good for frying.
See also: good adjective (SUCCESSFUL)