therefore是连接性副词,不能作连词连接两个句子,前面的句子后要用句号或分号,如Do come here tomorrow; therefore,we,as planned,will enjoy the wonderful performance together.或Do come here tomorrow.Therefore,we,as planned,will enjoy the wonderful performance together.
and是并列连词,可以连接两个句子.
therefore是连接性副词,不能作连词连接两个句子,前面的句子后要用句号或分号,如Do come here tomorrow; therefore,we,as planned,will enjoy the wonderful performance together.或Do come here tomorrow.Therefore,we,as planned,will enjoy the wonderful performance together.
and是并列连词,可以连接两个句子.