expectancy

期待，期望n.

• The supporters had a tremendous air of expectancy.

  支持者满怀期待。

• According to the work of Professor James Vaupel and his co-researchers, 50% of babies born in the US in 2007 have a life expectancy of 104 or more.

  根据詹姆斯·沃佩尔（James Vaupel）教授及其合作研究人员的研究，2007年在美国出生的婴儿中，有50%的人预期寿命在104岁或以上。

• However, that comparison omits other relevant factors: leisure time, life expectancy, and economic inequality.

  然而，这一比较忽略了其他相关因素：休闲时间、预期寿命和经济不平等。