详细解释:a. 大数目上马虎的, 大事情上糊涂的
英语解释：
形容词 pound-foolish:
unwise in dealing with large sums详细解释：
pound-fool.ish
adj.（形容词）Unwise in dealing with large sums of money or large matters.大事糊涂的：在大额金钱上或大事上草率行事的
来源：From the phrase penny-wise, pound-foolish 源自片语 penny-wise, pound-foolish