Be worried about...：为……忧虑，烦恼，着急
She’s a little worried about the expense. 她对那笔开支有些苦恼。
I’m worried about you, Jim. You look preoccupied. 我有点担心你，吉姆，你看上去心事重重的样子。
My husband is worried about my weight; I’ve been losing weight for 2 months. 我丈夫为我的体重担忧，这两个月来我的体重一直在下降。
My boyfriend is worried about his job, his company is downsizing recently. 我男友有些担心他的工作，他的公司最近在裁员。
I’m not worried about the marriage thing, it’s destiny, no rush. 我不急结婚这事，婚姻是缘分，急不来。
Be concerned about... 担心……，这个句型用来表示关切之意，“对……担心”。 中华考试网
I’m really concerned about your health. 我真的很担心你的健康。
Perfect. But what I’m concerned about most is the delivery time. 完全正确。但我最关心的是交货时间。
I’m concerned about your midterm exam. 我很担心你的期中考试。
She’s concerned about your safety. 她不放心你的安全。
Concern: n. 忧虑，焦虑，担心;焦虑的原因;
He is full of concern about his sick boss. 他非常挂念他生病的老板。
I’m not worried about money, but I’m concerned about the time. 我不担心钱方面的问题，我担心的是时间问题。