Lifeexpectancies throughout the Caribbean and some Central American nations will drop into the 60s by 2010 when they would otherwise have been in the 70s without AIDS.
Requirements, software designs and even test scripts have relatively short lifeexpectancies compared to code.
需求、软件设计，甚至测试脚本与代码比较有相对短的预期寿命。
3
The group also looked at how lifeexpectancies changed from 2000 to 2007, and found that 80 percent of counties were losing ground relative to the healthiest nations.