His bad health gives some cause for concern.
他的健康令人担忧。
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今天的几个句子还是有关表达担忧的:1.I'm worried sick by his health.我很担心他的健康。2. I must say that news disquieted me a great deal.我必须承认,那个消息使我深感不安。3.I shiver to the idea that he would get into trouble.他将陷入困境的消息使我不寒而栗。4.I'm really in a flap.我真的慌极了.