at one point在这句话里是什么意思？

at one point senators were prohibited from marrying women of low social origins

at one point在这句话里是什么意思？ at one point的意思 point at&point to 翻译：At the point..... 理解一句英语中的at one's disposal point at 与 point to 区别何在? point to 和 point at的区别 point to与point at的区别 point to 和point at 有什么区别？ point to sb与point at sb有什么区别？