an offer or suggestion, usually in business

He wrote to me last week regarding a business proposition he thought might interest me. 他上周写信给我，提出一项他认为我会感兴趣的商业建议。

I've put my proposition to the company director for his consideration. 我已将我的提议交给公司主管考虑。

an idea or opinion

They were debating the proposition that "All people are created equal". 他们正就“人人生而平等”这一命题展开辩论。

a statement or problem that must be solved or proved to be true or not true

Pythagoras's theorem is the mathematical proposition that in any right-angled triangle, the square on the hypotenuse is equal to the sum of the squares on the other two sides. 毕达哥拉斯定理是一个数学命题，即在任何直角三角形中，斜边的平方等于其他两条边的平方和。

in some states of the United States, a new plan that is voted on by the people of a state

He proposed an unsuccessful state proposition. 他提出了一个州级提案，但没有获得通过。

Under Proposition 71, the state will commit $3 billion to studying stem cells over the next 10 years. 根据第71号州级提案，该州将在未来10年内投入30亿美元用于干细胞研究。

to ask someone who you are not in a relationship with if they would like to have sex with you

I was propositioned by a complete stranger. 一个素不相识的人提出想和我上床。