be concerned about基本解释
关心，挂念; 惦
be concerned about网络解释
1. 关心,挂念：be composed of...由...组成 | beconcernedabout...关心...,挂念... | be determined to do something决心做...
2. 关心：18.materialistic society 物质社会 | 19.beconcernedabout 关心 | 20.the sense of achievement 成就感
3. 对...担忧/关注：5. be viewed as ... 被视为是... | 6. beconcernedabout ... 对...担忧/关注... | 7. pollution-free fuel 无污染燃料
4. 担心......,关心：18. meet one's needs 满足某人的需要 | 19. beconcernedabout 担心......,关心...... | 20. turn out 结果是;证明是