We're locked into it not just by day and night-there's the master timepiece in the brain called the circadian clock.
我们不仅按照昼夜的交替生活,而且还受大脑里的生物钟的支配。
2
Humans are pegged to a 24-hour cycle. We're locked into it not just by day and night-there's the master timepiece in the brain called the circadian clock.