at all costs片語KK [æt ɔl kɑsts] /æt ɔl kɑsts/發音片語1不惜一切代價、無論如何、務必We must protect the children's safety at all costs.我們必須不惜一切代價保護孩子們的安全。2千萬、絕對用於否定或勸誡Avoid that neighborhood at all costs after dark.天黑以後千萬不要去那一帶。