介绍:
笔记：fall behind 落后；掉队They are so afraid to fall behind.他们害怕会掉队。Move forward, or you'll fall behind.不进则退。获取节目完整音频、笔记和片尾的歌曲名，请关注微信公众号「早安英文」，回复“笔记”即可。更多有意思的英语干货等着你！
