个人认为there is前加上that引导同位语从句对signs进行解释。there is a problem应该没错,虽然是一个问题,但是出现一个问题的迹象可以不止一个。另外,也可以表述为signs of the problem..
The companies were also accused of ignoring signs there was a problem concerning opioids in northestern Ohio.
几家公司还被指控无视俄亥俄州东北部阿片类药物存在问题的迹象。
请教:句中signs there was a problem如何分析?是there引导的定语从句吗?没见过这种结构。为什么signs是复数,而there was a problem又是单数呢?
麻烦详细分析,谢谢!