trade和business有什么区别?

trade和business有什么区别? trade off和opportunity有什么区别 deal和trade有什么区别? trade,industry ,business的区别 commerce trade bargain business区别 for business和on business有什么具体区别 trade,commerce,business的区别?似乎都有商业的意思,具体有什么区别吗?如果是作为专业呢，如international trade/commerce/business这样这三个有没有区别？ Bussiness 和Business有什么区别? business和deal有什么区别 cowoker和business partner有什么区别 businessman和business man有什么区别 trade unions 和work councils 有什么区别呢? trading partner 和 trade partner 有什么区别吗 Business advertisement和Business management 什么区别? School of Management和Business School有什么区别 Honour Business Administration和BBA有什么区别 Business VISA 和 work visa 签证有什么区别 company和partnership business 有什么本质的区别