“我等了他半个多小时，但他没来，哎被他放鸽子了 ” I'v been waiting for him for more than half an hour, but he never showed up. 【show up】就是“现身”的意思，多用在别人等待时的场景，比 but he didn't come 地道多了，用come是典型的中式英语思维。didn't或never show up就是“放鸽子”/“连个人影都不见”的意思啦。当然，出席活动也用show up