til the cows come home
无限期地、无休止地、很久地、永远地
口语·表达漫长等待
英文释义
for a very long time, indefinitely
例句
You can argue with him til the cows come home, but he won't change his mind.
典故来源
源自农村生活，奶牛回家时间不定，常到很晚，比喻时间无限延长。