| 英語の学び場 |
birthrate 【意味】 出生率(= birth rate) 【参考】 ▷ the number of births for every 100 or every 1,000 people in a particular year in a particular place; a measure of how many children are born during a period of time in a particular place. 【用例】 ▷ a low/high birth rate →高い/低い出生率 ▷ a rising/falling birthrate →上昇する/下降する出生率 ▷ a falling/lowering/declining birthrate →落ち込む/低くなる/減少する出生率 ▷ the average birthrate in California →カリフォルニア州の平均出生率 |