spasmodic
adjective
uk/spæzˈmɒd.ɪk/us/spæzˈmɑː.dɪk/happeningsuddenlyforshortperiodsoftimeand not in aregularway:
一阵阵的,间歇性的He made spasmodicattemptstocleanup thehouse.他会时不时来了兴致后便打扫一下屋子。
Frequency & regularity - general words
- (as) regular as clockworkidiom
 - -ly
 - clockwork
 - endemically
 - erratic
 - erratically
 - fitful
 - frequency
 - irregular
 - irregularity
 - irregularly
 - like clockworkidiom
 - many
 - on and offidiom
 - on-again, off-again
 - on-off
 - periodic
 - periodically
 - religiously
 - would