the opening exchanges of a business中的exchanges是什么意思?

exchange student前加不加the THE COLUMBIAN EXCHANGE怎么样 the opening ceremony是什么意思 In the end,love exchange... monetary approach to the exchange The Exchange Diary From Heaven list on the exchange是什么意思 exchange exchange Exchange Lily is opening the door.(对opening the door提问) he is opening the book对opening the book提问 the USA exchange students正确还是American exchange students对? Exchange rate regimes and the price of exchange rate risk He__someone opening the door.(hear) the opening credits什么意思 announce the opening of是什么意思 opening line of the book.