You have to be good at spotting trouble on the way and heading it off.
你必須善于發現潛在的麻煩并加以化解。
A teacher should be good at drawing inferences about other cases from one instance.
老師要善于舉一反三。
It is not something that just anyone can be good at.
它不是任何人都可以勝任的。
Can Lily be good with her brother?
莉莉能和他弟弟相處好嗎？
The manager was stunned, but then told the dog "the sign says you have to be good with a computer."
經理驚呆了，他有對狗說：“廣告上還說你要精通電腦。”
I don't think I'll be any good with my sword.
以后，我再也不能用刀了。