"Every book is a journey, and every journey is a book."
每本書都是一次旅程，每次旅程都是一本書。
有時(shí)候在生活中，你并不總是感到堅(jiān)強(qiáng)，但這并不意味著你不堅(jiān)強(qiáng)。
The concept of inflation suggests that the universe underwent a period of extremely rapid expansion shortly after the Big Bang.