KET核心词-84
词书: KET核心词 - 第84课
练习内容
[{"word":"fasten one's safety belt","pronun":"","translation":"无","audio":"fasten_one_s_safety_belt.mp3"},{"word":"flight","pronun":"[flaɪt]","translation":"n. 飞行；班机；逃走\nvt. 射击；使惊飞\nvi. 迁徙","audio":"f
词书: KET核心词 - 第84课
[{"word":"fasten one's safety belt","pronun":"","translation":"无","audio":"fasten_one_s_safety_belt.mp3"},{"word":"flight","pronun":"[flaɪt]","translation":"n. 飞行；班机；逃走\nvt. 射击；使惊飞\nvi. 迁徙","audio":"f