rúguǒ / yàoshikǎ / shīxiào / le / qǐng / lìjí / liánxì / qiántái / yòng / bèiyòngkǎ / kāimén如果钥匙卡失效了,请立即联系前台,用备用卡开门。If the keycard stops working, please contact the front desk immediately and use a backup card to open the door.