A doomsday clock counts down the seconds until extinction.
國(guó)家消亡的倒計(jì)時(shí)已經(jīng)開(kāi)始。

Over time, low, unchanging fertility rates (without additional immigration) could mean actual extinction for an entire country.
隨著時(shí)間流逝，不變的低生育率（又沒(méi)有移民流入）將意味著日本整個(gè)國(guó)家的消失。

In the short term, that could mean losing 34% of the country's population by 2100.
短期來(lái)看，這意味著日本人口將在2100年前減少34%。

Taking a longer view, Japanese researchers recently pinned down the expected date of extinction with a doomsday clock. The date, according to the latest fertility rates, is August 12, 3776.
長(zhǎng)遠(yuǎn)來(lái)看，日本研究人員已經(jīng)用末日鐘算出了日本人滅絕的時(shí)間。根據(jù)最新的生育率來(lái)估算，日本滅絕的日期將是3776年8月12日。