beconcernedwith和about的区别
“be concerned with”意为“关心、挂念”；“be concerned about sth”表示“关心某事”，并且“be concerned about”还有“担忧某事”的含义，而“be concerned with”则没有。“concerned”作为形容词，有“相关的，关于（某个主题）的”“担心的，焦急的”“关注的，感兴趣的”等意思。
相关介绍：
例句：
The soldiers concerned were unarmed at the time.
相关士兵当时未携带武器。
He knew her weak spot where Steve was concerned.
就史蒂夫而言，他知道她的弱点。
He didn't seem in the least concerned for her safety.
他似乎一点都不担心她的安全。
