The growing influence of algorithm agents on individuals and the society is becoming obvious; meanwhile, they have caused a series of public concerns such as the unfairness, discrimination, and opaqueness of algorithmic decisions. The right to explanation purporting to make the algorithm decision-making transparent is thus considered as an effective measure to deal with algorithmic harms. However, the right to explanation hardly can be proved in the existing legal framework. Furthermore, it cannot effectively solve the algorithmic harms to individuals in reality. We argue that it is not necessary to create a new right of explanation since such GDPR rules as the right to erasure, right to data portability, and data protection impact assessment, can make algorithm decision-makings more reasonable and responsible.