1. Most modern hotels use RFID key cards to enter their rooms. It is for their customers' convenience.2. Some hotels use magnetic key cards to enter their rooms. It is more convenient than using physical keys.
 magnetic key card RFID key card在飯店使用的「房卡」得看是哪種房卡，磁條房卡就是 magnetic key card，感應房卡或無線射頻辨識房卡就是 RFID key card< >
Being able to speak at the age of one, the boy has unlimid potential when he grows up.下一題 - 泡溫泉 f我要發問