sporadic
/spəʊˈrædɪk/adjective
- occurring at irregular intervals or only in a few places; scattered or isolated散乱的; 零星的：
sporadic fighting broke out.
零星有战斗爆发。
派生词
sporadically
adverb词源
late 17th cent.: via medieval Latin from Greek sporadikos, from sporas, sporad- 'scattered'; related to speirein 'to sow'.