Các câu ví dụ cho từ expectancy

1. South Korea's average life expectancy is much higher due to a number of factors including good childhood nutrition, low blood pressure, low smoking levels and good access to care, the researchers say.

2. But due to a lower birthrate and longer life expectancy, Vietnam is aging rapidly and the working-age population is shrinking.

3. Sierra Leone ranked 179th out of 188 countries on the UN Development Programme's 2016 Human Development Index, a basket of data combining life expectancy, education and income and other factors.