相关单词近义词 seldom 很少, rarely 很少, uncommonly 稀罕(极, occasionally 偶尔地, intermittently 间歇地, once in a blue moon 罕见的，极少的，难得的..., irregularly 不规则地, now and then 时而, once in a while 偶尔, fitfully 发作地反义词frequently, 频繁地临近词infrequent, infrequent delivery intervals, infrequent comprehensive inquiry, Infrequent oases in the desert., infrequently stuffed with e.g. pimento. 返回 infrequently