adj.稀少的,罕见的
her infrequent visits home
她少有的探望家人
Disturbances are relatively infrequent in British prisons.
相对来说,英国监狱不常发生骚乱.
Barriers between nations are reared by slow and infrequent communication.
国与国之间的隔阂是由沟通缓慢而又太少形成的.