过去是一个异国他乡;他们在那里做不同的事情。
Theorems are the milestones of mathematics.
轻易不动感情的人,一旦动情,就会地裂山崩,把自己燃烧成一堆灰烬,被他爱上的人,也会被这狼烟烈火烧烤得痛不欲生。
In Russia, the severity of laws is compensated for by the fact that it is not necessary to execute them.
Overfishing is short-sighted; we must leave a bountiful ocean for future generations.