cannot help but

不得不(接动词原形)

cannabis, canned, canned music, cannelloni, cannery, cannibal, cannibalism, cannibalization, -isation, cannibalize, -ise, cannily, canniness, cannon, cannon folder, cannon-ball, cannon-fodder, cannonade, cannot, cannot afford sth. to do, cannot but, cannot help, cannot...too..., canny, canoe, canoeist, canola, canon, canon law, canonical, canonization, -isation, canonize, canonise, canopy, cant, Cantab, cantaloup (also cantaloupe), cantankerous, cantankerously, cantata, canteen, canter, canticle,