Let’s -- -- (不偏离,围绕)the point to talk about it.

keep to
坚持；遵守；信守；固守（习惯等）
1.(使)遵守,遵循；不背离：例句:One should keep to one's promise.
一个人应当信守诺言.2.(使)不偏离；(使)限于：例句:Keep to the subject,please!We don't have much time.
请别离题!我们没有多少时间.3.(使)坚持：例句:He kept to his task till he finally finished it.
他一直坚持到最后完成了任务.4.留在(某处)；待在(里面)：例句:to keep to one's bed
卧床不起She was unhappy today and kept to her room all day.
她今天不高兴,一整天都呆在屋子里.5.保持(某方向)：例句:to keep to the right
靠右边The policeman asked the crowd to keep to one side.
警察让人群站在一边.
以上来源于:《21世纪大英汉词典》