john hasn't been seen for four days and there is growing (concern)for her safety为什么concern?
问题描述：
john hasn't been seen for four days and there is growing (concern)for her safety为什么concern?
答
这里 concern 的意思是关注/关心 （名词）
四天没见约翰了,（大家）越来越担心他的安全.为什么concern不用adj?不可用adj.growing 已经是adj. , 是修饰名词 concern 的。看这两个句子：There is concern.There is water.concern 和 water 一样是名词。