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call button (n)/kɑːl ˈbʌt̬.ən//kɔːl ˈbʌt.ən/a small device that you can press to get someone's attention or request assistance.nút gọi  In the hospital room, the patient used the call button to summon a nurse for assistance with adjusting the bed. At the hotel reception desk, a guest pressed the call button to request room service and place an order for dinner. During the business meeting, the executive discreetly pressed the call button to signal the assistant for some documents needed for the presentation. Từ vựng khác:X-ray machine , security guard , security camera , flight attendant , hand luggage |