So write a letter, write down your new lifeexpectation and dream, and put it away.
写一封信，记下你们对新生活的展望和梦想，并将它收藏起来。
2
This paper presents the calculation methods for lifeexpectation of automotive leaf springs.
介绍了作者在产品设计中，多年来采用的汽车钢板弹簧设计寿命的计算方法。
3
The general health of the Benin population is poor: lifeexpectation at birth is 47 years and 24% of children under the age of 5 suffer from undernutrition.