first come first served短语⁸⁴³²⁰⁺⁸ 基本例句 先到者先接受服务原则 All bookings will be processed on a first come first served basis. The Hong Kong Harmonica Association cannot guarantee the availability of tickets. 所有订票申请均以先到先得方法处理。香港口琴协会不能保证所有订票者均能订得门票。 hkharmonica.org