理解计算的极限对于推进计算机科学领域至关重要。
Understanding the limits of computation is essential for advancing the field of computer science.
To write a good love letter， you ought to begin without knowing what you mean to say， and to finish without knowing what you have written.
荒野不会给你第二次机会。你必须珍惜每一刻。
"The world is a stage, but the play is badly cast."
女权运动让女性相信她们可以拥有一切——事业、家庭和个人满足。但现实是，有些事情必须放弃。
The historical sense involves a perception, not only of the pastness of the past, but of its presence.