bolt from the blue片语KK [bolt frʌm ðə blu] /boʊlt fɹʌm ðə blu/发音片语1晴天霹雳、意外之事、突如其来的消息Her resignation came as a bolt from the blue to everyone.她辞职的消息对所有人来说都是晴天霹雳。用这个字练口说→