It is postulated(假定\假设\认为) that population(人口) trends(趋势) have an effect on (对...有影响)economic (经济的)fluctuations(波动).
A.
challenged(挑战)
Decline – drop – fall 下降
谚语:
Failure
THe man that suffers
No one
He
It is postulated(假定\假设\认为) that population(人口) trends(趋势) have an effect on (对...有影响)economic (经济的)fluctuations(波动).
A.
challenged(挑战)
Decline – drop – fall 下降
谚语:
Failure
THe man that suffers
No one
He