For as long as I can remember, Mom has been a middle-aged woman, but no one told me she used to be a young girl.
从我们记事起,妈妈就是一个中年妇女了,可谁又知道,她也曾是个花季少女。
计算机科学的挑战不仅在于创造新技术,还在于确保它们被道德和负责任地使用。
Success is not final, failure is not fatal: It is the courage to continue that counts.