名 sky，heaven，day，a period of time in a day；形 overhead，natural，innate ；

[例句] 人生就应该是快乐的，要抓住每一天，孩子们，让你们的生活变得非凡起来。 Carpe diem. Seize the day, boys. Make your lives extraordinary.

[例句] 终有一天，你会学会让泪往心里流。 Eventually, you'll learn to cry that on the inside.