《自然》：揭示褪黑素受体结构，让睡个好觉不再是梦

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

揭示觉The key to success is to focus on goals, not obstacles.褪黑体结Don’t stop when you’re tired. Stop when you’re done.

素受Do something today that your future self will thank you for.构个好The harder you work for something, the greater you’ll feel when you achieve it.让睡Your limitation—it’s only your imagination.

自然再Dream it. Wish it. Do it.揭示觉Don't wait. The time will never be just right.

褪黑体结Your limitation—it’s only your imagination.

素受Don’t stop when you’re tired. Stop when you’re done.构个好The key to success is to focus on goals, not obstacles.

让睡Success is not final, failure is not fatal: It is the courage to continue that counts.自然再Great things never come from comfort zones.

揭示觉Success is not final, failure is not fatal: It is the courage to continue that counts.褪黑体结Wake up with determination. Go to bed with satisfaction.

(责任编辑：马场俊英)