a devil-may-care attitude to life的用法和样例：
- He drives that sports car of his in a devil may care manner.
- He was a devil may care youth but became more serious as he grew older.
- He has a mellow attitude to life.
- He has a sanguine attitude to life.
- Even a Devil May Cry when he loses a loved one.
- We must take a more positive attitude to life.