参加活动。
Topic: local news
A: how are you?
Me: Good. But my best friend is concerned about the mountain fires around here and called me last night.
A: Oh. The fire is still on and the air is really bad now.
me: It is said to be bad, but I do not feel it.
A: Yesterday evening, I went out to play frisbee, and could not help coughing.
me: Really?
A: Yes. No outdoor sports recently. There're smoke in the air.