1. They were even concerned about whether his son would ever return to their humble village. 他们甚至会担心老先生的儿子是否会回到这个卑微的村庄。
2. Concerned departments also cancelled some fee items so as to lower housing construction costs. 有关部门还取消了一些收费项目，以降低住宅建设成本。
3. Engineers and designers for both manufacturers were concerned more with function than form, and the amount of potential these bikes offer is amazing. 工程师和设计师对于制造商而言更不是形式与功能，以及潜在的数额提供这些自行车是惊人的。
英英解释
adj.
1. feeling or showing worry or solicitude
2. involved in or affected by or having a claim to or share in
3. in relation (or in regard) to; especially as in the phrases
4. culpably involved
