1. And life expectancy can go down as well as up. 而且平均寿命不仅可能增加,也可能会减少。
2. Captain tell you the life expectancy for pilots around here? 上校告诉你们飞行员的平均寿命有多长吗?
3. To live such a long life expectancy, at 40 years of age when it must make a difficult but important decision. 为了能活这么长的平均寿命,在它40岁的时候必须做一个困难但是非常重要的决定。
英英解释
n.
1. pleasurable expectation
2. something expected (as on the basis of a norm)