to be mutually causal; to be both the cause and the effect of each other's being; to be interdetermined
一个人的学习态度和学习成果常常互为因果，积极的态度会带来好成绩，好成绩又会增强积极性。
A person's learning attitude and academic performance are often mutually causal; a positive attitude leads to good grades, and good grades in turn reinforce the positive attitude.
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