“左”倾机会主义错误表现为理论观点超出实践的需要,主观认识超越客观每件的可能。我国建国以来“左”倾错误主要指中国共产党的指导方针在 1957-1976年间在以下两个问题上的失误:一是对社会主义条件下 “Left” opportunism mistakes show that theoretical viewpoints exceed the need for practice, and subjective knowledge surpasses the possibility of objectively each. The “Left” errors since the founding of our country mainly refer to the errors of the guidelines of the Communist Party of China in 1957-1976 on the following two issues: First, under the conditions of socialism.