英和和英

strike a bargain

come to terms

engage in the trade of

prevent commerce

to deal in futures

to close a transaction―close a bargain

a transaction in futures

The bargain is struck.

an exchange

transactions on the Exchange

arbitrage dealings

a square deal

conduct business

at a stock exchange, to be concluded for the first time in the day

spot transaction

to deal in futures

He is exact （to the cent） in his dealings.

buy, sell (do business transactions)

the other party in a transaction

speculative dealings

an act of making a contract for a sale or a purchase

a forward bargain

to make a contract with a person

to open an account （with a bank）

Flow of trading

to do business for cash

deal with simultaneously

to act as middlemen in a transaction

a transaction called a trade transaction

to close a deal at an exchange