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

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

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