The essence of cryptography is to allow communication in the presence of adversaries.
密码学的本质是允许在存在对手的情况下进行通信。
尊重孩子正在进行的所有合理的活动并试着了解,是我们教育方法中最首要的原则。
She walks in beauty, like the night
The reason for time is so that everything doesn't happen at once.