business priority 和 political priority的区别如题

business priority 和 political priority的区别如题 priority seats 和regular seats意思? 美国亲属移民 priority date 和 received date 的含义我只有received date,怎么知道自己的priority date?可以用received date推算priority date吗? Business advertisement和Business management 什么区别? Priority是什么意思 commercial和business区别 give priority to 和 give priorities to 什么时候用?和主语的单复数有关吗? business business business business business Business Business business business business business