could you tell me something about the accidentanything用于否定和疑问句中,为什么这个句子中要用something?意思可以解释,从语法角度怎么解释?

问题描述:

could you tell me something about the accident
anything用于否定和疑问句中,为什么这个句子中要用something?
意思可以解释,从语法角度怎么解释?