四年级-上册-4

练习内容

[{"word":"look for","pronun":"[ˈlʊk fɔːr]","translation":"寻找","audio":"word_look for_8095d87f_entry.mp3"},{"word":"because","pronun":"[bɪˈkəz]","translation":"因为","audio":"word_because_cc70865f_entry.