An incessant process or activity is one that continues without stopping.
例句
...incessant rain.阴雨连绵...his incessant demands for affection.他对感情的不断索取
英汉词典释义
adv.
不断地,不停地
It rained incessantly for the whole two weeks.雨不间断地下了整整两个星期。Her tongue was incessantly scolding.她嘴里不断地训人。The machines roar incessantly during the hours of daylight.机器在白天隆隆地响个不停。
英英词典释义
Adverb
1. with unflagging resolve;
"dance inspires him ceaselessly to strive higher and higher toward the shining pinnacle of perfection that is the goal of every artiste"