大凡dàfán〈副词adv.〉用在句首,表示总括一般的情形,常跟‘总、都’等呼应{[used at the beginning of a sentence and oft. correlative with 总zǒng, 都dōu, etc.] generally; in most cases}: ～搞基本建设的单位,流动性都比较大。{Generally speaking, units engaged in capital construction have noticeable fluidity.}