it's (六个字母) to study English you nod your head to show you (十个字母)the speaker
问题描述：
it's (六个字母) to study English you nod your head to show you (十个字母)the speaker
答
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