职场英文会议想请假提前离开，怎么说礼貌得体？

地道表达是"Would it be okay if I leave 15 minutes early today? I have a personal appointment to attend."，翻译过来是“我今天可以提前15分钟走吗？我有一个私人预约要赴”。使用场景是职场会议需要提前离场时，礼貌说明原因征求同意，既清晰又得体。例句："Excuse me everyone, would it be okay if I leave 10 minutes early today? I need to catch a train." 翻译：“打扰大家了，我今天可以提前10分钟离开吗？我要赶火车。”