rest assured片語KK [rɛst əˋʃʊrd] /ɹɛst əˈʃʊɹd/發音片語1放心、儘管放心、確信Rest assured that your package will arrive before the weekend.請放心,你的包裹會在週末前送到。2請相信、大可放心正式You may rest assured that we treat every complaint seriously.請相信,我們會認真處理每一件投訴。