know no bounds; (talk)on and on; be without limitation (/limit) ❍ 每当讲起话来，他就讲得～，至于听众对他的讲话是否感兴趣，他毫不在乎。Whenever he makes a speech,he talks on and on and does not care a straw whether his listeners were interested in his speech or not.
漫无止境
know no bounds;without limit 个人的欲望是～的。A man’s desire knows no bounds./科学的探索是～的。There is no limit to the exploration of science.
漫无止境màn wú zhǐ jìnɡ
漫：无边无际。形容时间长或距离遥远，也形容人贪得无厌。know no bounds, be without limit, without limitation