The incense at this old temple has burned without a break for a thousand years.
Tips
usage
不绝 follows its subject: 掌声不绝 (applause that goes on and on). It is fixed in several idioms: 滔滔不绝 (to talk on and on), 络绎不绝 (in an endless stream) and 不绝于耳 (to ring in one's ears without end). Everyday speech prefers 不断.