She couldn't make mistake on this matter becarse she had tried it many times.could 这儿怎么理解?

分类: 作业答案 • 2022-01-07 12:08:24

问题描述：

She couldn't make mistake on this matter becarse she had tried it many times.could 这儿怎么理解?
能用can't

答

could较为委婉,仍有说错的余地