But given the low birth rate over the past 30 years, the supply of young workers is not, in fact, endless.

但是考虑到过去30年的低生育率，年轻工人的供应实际上不是源源不断的。

youdao

The birth rate among professional women is particularly low.

职业女性的生育率则更低。

youdao

The CDC study did not explore why the teen birth rate is at an all-time low.

疾病控制中心的研究并没有探究出为什么青少年出生率总是处于低比率状态。

youdao

But given the low birth rate over the past 30 years, the supply of young workers is not, in fact, endless.

ECONOMIST: Getting old before getting rich

No less than 70% of the country's social-security budget goes to the elderly and only 4% is aimed at child care, reinforcing the low birth rate.

ECONOMIST: Social change in Japan

Since the 1970s the number of men and women marrying in their 20s and early 30s has fallen sharply, which is one of the main reasons the birth rate has fallen so low.

ECONOMIST: Japan's samurai culture