►含义call for help when it is not needed, with the effect that one is not believed when one really does need help.某人不需要帮助时喊人帮忙，结果就是当 ta 真的需要帮忙时，没人信他了。 ►例句Don't cry wolf unless you really need help.除非你真的需要帮助，不然不要发“狼来了”的假警报。 ►对话A: Tim is so pathetic. Nobody believes he is in trouble.Tim太惨了，没人相信他有麻烦了。B: He has cried wolf so many times.因为他喊了太多次“狼来了”。 ►额外收获：1.with the effect that：有这样一个效果…2.unless: 除非（引导让步状语从句）3.pathetic: adj.悲惨的