a going business的用法和样例：
- He will make a go of any business he enters.
- I am sure(that) he'll make a go of it.
- I'll have a go at mending your bike today.
- She's determined to make a go of her new career.
- My son asked me to let him have a go at the heavy box.
- I made John let my son have a go at the new goy.