postulate of set algebra

例句：

1. 1. The scientist proposed a new theory to explain the phenomenon.
   科学家提出了一个新的理论来解释这个现象。
2. 2. The team decided to postulate a solution before they could find one.
   团队决定在找到解决方案之前提出一个假设。
3. 3. The physicist postulated that gravity is not a force but an interaction between mass and space-time.
   物理学家提出，重力不是力，而是质量和时空之间的相互作用。