六年级下-2

练习内容

[{"word":"smarter","pronun":"[smɑːrtər]","translation":"adj. 聪明的；精明的（smart的比较级）","audio":"smarter.mp3"},{"word":"become","pronun":"[bɪˈkʌm]","translation":"vt. 适合；相称\nvi. 成为；变得；变成","audio":"become.mp3