S

练习内容

[{"word":"safe","pronun":"[seif]","translation":"adj. \u5b89\u5168\u7684; \u65e0\u98ce\u9669\u7684","audio":"word_safe_9dfc8dce_entry.mp3"},{"word":"sail","pronun":"[seil]","translation":"n. \u9a7e(\u