Taking a walk, visiting the gym, and other forms of exercise.

Meetings with business associates don’t have to take place in the office or a restaurant. Invite someone to join you for a walk in the park, run around the track, or a game of tennis. You don’t have to learn to play golf in order to get exercise and do business at the same time.

at the same time表示转折，此句中表示是什么意思？