Chapter.15

练习内容

[{"word":"mutual","pronun":"'mju:t\u0283u\u0259l","translation":" adj.\u76f8\u4e92\u7684 \u5171\u540c\u7684"},{"word":"slippery","pronun":"'slip\u0259ri","translation":" adj.\u6ed1\u7684 \u4f7f\u4eba\