birth rate
noun /ˈbɜːθ reɪt/
/ˈbɜːrθ reɪt/
- the number of births every year for every 1 000 people in the population of a place
- a low/high birth rate
- The birth rate is falling/rising.
- Educating girls has the effect of lowering birth rates.
单词 | birth rate |
释义 | birth ratenoun /ˈbɜːθ reɪt/ /ˈbɜːrθ reɪt/
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