短語詞組短語infrequently ad 珍貴地sketch infrequently 罕見地密謀attack infrequently 罕見地攻擊promote infrequently 罕見地提陞plot infrequently 罕見地密謀betray infrequently 罕見地流露earthquake infrequently 罕遇地震Although Infrequently 雖然不很頻繁sew infrequently 罕見地縫制 返回 infrequently