英汉词典

1.The effect of crowding and physiological stress and shortage of food resources were the main reasons for the decline of population natality and yearly increase rate.

种群密度过高产生的拥挤效应和食物资源不足是造成种群出生率和年度增长率下降的主要原因。

2.The effect of crowding and physiological stress and shortage of food resources were the main reasons for the decline of population natality and yearly increase rate.

种群密度过高产生的拥挤效应和食物资源不足是造成种群出生率和年度增长率下降的主要原因。

3.Paraquinones always Gao Zong Bao of the financial situation poverty come to say, the metus of the natality fetch of 3 embryo in the wombs is far larger than joy.

对一直家境贫困的高宗保来说，3胞胎的出生带来的忧虑远大于喜悦。

4.Reduction of competition for food stimulates both natality and survival .

食物竞争的减少，刺激了出生率和存活力。

5.Reduction of competition for food stimulates both natality and survival.

食物竞争的减少，刺激了出生率和存活力。