I'd be glad if you could help me.
你若能幫助我，我會非常感激。
What's your problem? ─ I only asked if you could help me for ten minutes.
你有毛病啊？我只是問問你能不能幫十分鐘的忙而已。
Her parents could help with child care while she works.
她工作時父母可以幫忙照看孩子。
No one could help getting carried away by the hysteria
所有人都不由自主地受到狂熱情緒的感染。
I knew from past experience that alternative therapies could help
根據過去的經驗，我知道替代療法可能有用。