a trouble-free life的用法和样例：
- Mark, Andreas and Marcus were unable to have a trouble free run this year, I sincerely appreciated them making the effort to come to Pikes Peak and I hope that they are able to return in the future.
- I only want to lead a free life.
- This dish is delicious but rather a trouble to prepare.
- I would hate you to think me a trouble maker.
- He titled his pond the Free Life Pond.