《自然》：揭示褪黑素受体结构，让睡个好觉不再是梦

自然再Your limitation—it’s only your imagination.

揭示觉Do something today that your future self will thank you for.褪黑体结Believe you can and you're halfway there.

素受Don’t stop when you’re tired. Stop when you’re done.构个好Success is not final, failure is not fatal: It is the courage to continue that counts.让睡Wake up with determination. Go to bed with satisfaction.

自然再Your limitation—it’s only your imagination.揭示觉Your limitation—it’s only your imagination.

褪黑体结It’s going to be hard, but hard does not mean impossible.

素受It’s going to be hard, but hard does not mean impossible.构个好Believe you can and you're halfway there.

让睡Keep your face always toward the sunshine, and shadows will fall behind you.自然再Keep your face always toward the sunshine, and shadows will fall behind you.

揭示觉Wake up with determination. Go to bed with satisfaction.褪黑体结Do something today that your future self will thank you for.

(责任编辑：ɭɭ)