因为它不可能预测个体环境的可能性经历显著的性能下降，测试是强烈鼓励。
Since its not possible to predict the likelihood of individual environments experiencing noticeable performance degradation, testing is strongly encourage.
若从主体角度看，群体环境意识水平的提高较之个体环境意识水平的提高将更有利于环境问题的解决。
Seen from the subject angle, it's more unportant to raise the level of environmental awareness of the group than that of the individual.
根据第一个理论，在自然选择的帮助下，每个个体都进化出了对有节奏环境的适应。
According to the first of these theories, each individual have evolved, aided by natural selection, an adaptation to the rhythmic environment.
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