we know what concern you and other teachers are the unhealth
2个回答

语法没错

分析句子结构,what concern you and other teachers 是宾语从句(稍后用*代替), we know * are the unhealthy websites. 因为websites是负数,所以谓语用are.

但这是典型的中文思路翻译出来的英文,真正的英文表述是这样的:

we know that the unhealthy websites are you and other teachers' main concern

或者

we know that the unhealthy websites are the main concern of you and other teachers