自然界中万事万物的运动变化都遵循着相互依存、相互消长、相互对立的统一规律。
The motion and change of things in the natural world abide by a unified law of opposing and supplementing each other.
种群的数量季节消长主要是繁殖和死亡两因素相互作用的结果。
Reproduction and mortality are two primary factors to affect population quantity dynamic.
种群的数量季节消长主要是繁殖和死亡两因素相互作用的结果。
Reproduction and mortality are two primary factors to affect population quantity dynamic.
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