代替詞是jollification，中文意思是活動，熱鬧
排練場被午餐時段活動搞得很熱鬧。The rehearsal studio is buzzing with lunchtime activity.
經濟活動常常遵循週期性模式。Economic activity often follows a cyclical pattern.
這個測試顯示出大腦的電流活動。The test records the electrical activity of the brain.
品位站
