1) One's speech passes from one subject to another
语离本题
2) To digress from the subject
脱离本题
4) stick to one's text
(话)不离本题
5) Please keep [stick] to the point.
请不要离开本题。
6) You've wandered from the subject.
你已经偏离本题。
补充资料：脱离
1.离开;断绝。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条