The train slacked up as it came into the station.列车进站时减了速.His pace has gradually slacked.他的步速逐渐慢了下来.Haas slacked off in his work.哈斯工作很懈怠....

v.偷懒( slack的过去式和过去分词 )，减速，放松...

slacked的音标：...