ought to know better的意思|示意

You ought to know better than stay away from school.

你该知道不应当逃学。

You ought to know better than to damage the state property.

你应该知道损坏国家财产是不对的。

You ought to know better than to go out in this cold weather in those thin summer shoes; no wonder your feet got cold!

你应当明白，这么冷的天气不应穿夏天的鞋出去，难怪你的脚冻伤了！

You ought to know better than to make friends with him.

你应该知道不和他这样的人交朋友。

You ought to know better than to go swimming on such a cold day.

你不至于这样冷的气象去潜泳吧。

Or indeed that professional investors, who ought to know better, are as starstruck as the readers of gossip magazines.

或许，甚至本来应该了解更多的专业投资者，亦变得像八卦杂志的读者一样喜爱追星。