a business opening的用法和样例：
- He put the telephone bill down as a business cost.
- He has no idea of how to run a business.
- McMahon's men made a busy opening to the game, crisply zipping the ball around the immaculate pitch at Leigh Sports Village.
- Mr Grate just entered on a business career.
- A business must stay in the black to keep on.
- My wife anticipates all my needs each time I come back from a business trip.