to be about or involve someone or something
This notice concerns all employees about the new policy.
本通知涉及所有员工关于新政策的事宜。
to be about a topic
The book's first chapter concerns the early history of the city.
这本书的第一章涉及该城市的早期历史。
to make someone worried
Your health problems concern me, and I think you should see a doctor.
你的健康问题让我担心,我认为你应该去看医生。
to show interest in something
He doesn't concern himself with small details that don't matter.
他不关心那些不重要的小细节。
a feeling of worry
There is growing concern about the safety of the building after the earthquake.
地震后,人们对建筑物安全性的担忧日益增加。
care and help for someone or something
She showed great concern for her sick friend by visiting every day.
她每天探望生病的朋友,表现出极大的关怀。
something that is important to someone
Our main concern is to provide good education for all children.
我们主要关心的是为所有儿童提供良好的教育。
something that is your business or responsibility
How I spend my money is not your concern, so please don't ask.
我怎么花钱不关你的事,所以请不要过问。
a company or business
The large business concern announced it would create new jobs in the area.
这家大型企业宣布将在该地区创造新的就业机会。