"to have concerns" 是表示 "担忧" 的常用短语。这个短语来源于英语中 "concern" 这个单词，意思是 "关心、关注"。
例句：
I have concerns about the safety of this product. (我对这个产品的安全有所担忧。) She has concerns about her future career. (她对未来的事业有所担忧。) He has concerns about the environment. (他对环境有所担忧。)