1 an idea, a plan or an offer, especially in business; a suggestion 主张，计划，出价（尤指业务上的）；提议；建议: A month's holiday in Spain is an attractive proposition. 到西班牙度假一个月是个很有吸引力的提议。

2 an idea or opinion that sb expresses about sth （对某事物的）意见，看法，见解: That's a very interesting proposition. But can you prove it? 那是很有意思的见解，但你可加以证明吗？