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it's (六个字母) to study English you nod your head to show you (十个字母)the speaker

题目详情
it's (六个字母) to study English you nod your head to show you (十个字母)the speaker
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答案和解析
it's (useful) to study English
you nod your head to show you (understand) the speaker
学英语很有用
你用点头来表示你理解说话者
花了不少时间想,希望采纳,谢谢