doublyadv USA: dʌ'bliː· UK: dʌbliː
make assurance doubly surev USA: meɪ'k ʌ·ʃʊ'rʌ·ns dʌ'bliː· ʃʊ'r UK: meɪk əʃʊərəns dʌbliː ʃʊər
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