相关单词同义词contingently, adventitiously, 近义词 periodically 周期性地, intermittently 间歇地, infrequently 罕见地, from time to time 有时, now and again 时而, now and then 时而, once in a while 偶尔, occasionally 偶尔地, irregularly 不规则地临近词sporadic, sporadic violence, sporadic fighting, sporadic parasite, sporadic corollary, sporadic deviation, sporadic cretinism, sporadic dysentery, sporadic nucleation, sporadic depression, sporadic resistance 返回 sporadically