Many business people turn off their pagers and cell phones during their leisure time.
许多商人在他们的休息时间里都把传呼机和移动电话关掉。
later, we shall undergo a progressive loss of our vigour and resistance which, though imperceptible at first,
再迟一些,我们就要经历生命力和抵抗力逐步衰退的过程。虽然这个过程起初难以觉察,