每日口說挑戰 如果地球上所有的人類都消失了會怎樣？| BBC創意 (What if all humans on Earth disappeared? | BBC Ideas)

今日挑戰句子

Within days, the electricity grid fails as fuel supplies run out and there's nobody to override the powerstation's failsafe mechanisms.

幾天內，由於燃料來源耗盡，輸電網出現故障，沒有人可以把發電站的故障保護機制改成手控。