然而，它们和其他猴子必须被跟踪更长的时间，以了解低卡路里摄入是否可以延长猴子的平均寿命和最长寿命。
They and the other monkeys must be followed still longer, however, to know whether low-calorie intake can increase both average and maximum lifespans in monkeys.
甘德森说：“那些增加的细胞核至少还会存在三个月——对于平均寿命只有两年的老鼠而言，可算是很长的一段时间了。”
The extra nuclei stick around for at least three months -- a long time for a mouse, which lives a couple of years on average, Gundersen says.
在这一时间段内，随着平均寿命和生育率的提高，石油输出国的人口开始迅速增加。
Over the same period, the populations of OPEC countries started to mushroom, as both life expectancy and fertility rates rose.
应用推荐