population trends

基本解释

It’s a joint project with the University of Ghana to collect data on nesting and population trends.
这是与加纳大学的合作项目，用以收集海龟筑巢数据和数量趋势。
If that continues, given what we know about our population trends, we are going to have a problem for Republicans.
如果这个趋势继续下去的话，再加上我们已知的美国人口构成的走向，共和党将来肯定会有问题的。
At a time when Malthusian alarms are ringing because of environmental pressures, falling fertility may even provide a measure of reassurance about global population trends.
在当前因环境压力因素，马尔萨斯人口论向人们敲响警钟时，生育率的降低也不失为人们对全球人口走向担忧的一剂安抚剂。

But if Democrats can replicate 2012 turnout rates in 2016, they would win the presidency, given current population trends, Frey said.
NPR: A Census First: Black Voter Turnout Passes Whites
In the Jerusalem district, the population trends are in flux.
CENTERFORSECURITYPOLICY: Where Israel Went Wrong