clarion call
noun [ C usually singular ] literary uk/ˈklær.i.ən ˌkɔːl/ us/ˈkler.i.ən ˌkɑːl/
召唤；号召
a very clear message or instruction about what action is needed
to issue/sound a clarion call for change 吹响变革的号角
江苏热线英汉汉英双解词典包含207361条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。