比喻无法长久维持。 夏衍 《法西斯细菌》第三幕：“最初的两年，东碰西碰，什么地方也呆不长， 北京 人打话，‘兔子尾巴长不了’。”

1.The tail of a rabbit can't be long -- one's good times don't last long.; be as short as a rabbit's tail; Something won't last long.