?三三两两地
... on second thoughts再三考虑 by ones and twos三三两两地 Two heads are better than one.三个臭皮匠胜过诸葛亮。（我个人认为此句译为“一人计短，二人计长”更好些） ...
?两两地
... on second thoughts再三考虑 by ones and twos两两地，零零落落地 Two heads are better than one.三个臭皮匠胜过诸葛亮。 ...
?零零落落地
开火车 by ones and twos三三两两地、零零落落地 They destroyed the enemy forces one勿one.他们各个击破故人。
?零零散散
... on second thoughts 再三考虑 by ones and twos 零零散散 Two heads are better than one. 两个臭皮匠抵个诸葛亮 ...
三
零零落落地；三三两两地
by twos and threes
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。