a smoke-free working environment的用法和样例：
- The additional part time or sessional artists, though diverse in talents, are similar in their dedication and in their wish to create a harmonious, stress free working environment.
- They stopped work to have a smoke.
- I'll have a smoke if you don't mind.
- I often decline an offer of a smoke.
- I long for a smoke, but I have no matches.
- He stepped outside for a smoke during the meeting.