1. (2022高一上·南靖开学考) 请在下列句子中划出3个含有双元音（/aɪ/, /eɪ/, /aʊ/, /əʊ/, /ɔɪ/, /ɪə/, /eə/, /ʊə/）的单词。

A strong man can save himself; a great man can save another.