That's a big chronological span, and it netted a big genetic haul: the research identified no fewer than 440 genes that start to slow down after age 40.
这个部位的时间跨度很大，而且含有大量基因：研究发现，在40岁后，不下440个基因开始放缓速度。
2
A typical life span for Sumatran orangutans is 40 to 50 years.
苏门答腊猩猩的平均寿命在40到50岁。
3
But as time passed, as he span between the royal duties, people began to 5 remark that the prince was approaching 40 and still unmarried.