Economic activity: 經濟活動
level out: to stop rising or falling and become steady (經過漲落之后)保持平穩發展
注:也可以說是level off,意思相同.
Sales have levelled off after a period of rapid growth.
銷售經過一段時間的快速增長后呈穩定狀態.
recover: to return to a normal condition after a period of trouble or difficulty 復原,恢復常態
the economy is at last beginning to recover.
經濟終于開始復蘇了.