Regular expressions would be nearly impossible to add to indexer, and I know of no database search system that prepares a list of which files contain text matching which regular expressions.

规则表达式几乎无法加入到indexer中，据我所知没有一个数据库搜索系统具有哪些文件包含符合哪些规则表达的内容的列表。

youdao

Not only do the bright paints make the dying trees prettier, but they also add an unusual element to the desert landscape that is impossible to miss.

他们不仅仅是用鲜亮的色彩来彩饰那些奄奄一息的树，使其更充满活力，而且也为不容忽视的沙漠景观增加了一些不一样的元素。

youdao

It's almost impossible to stay organised without having time management skills, so add this to your list!

如果没有时间管理技能的话，这几乎是不可能保持井井有条。因此，把时间管理技能这一条加到你的清单上。

youdao

It's impossible to add up all the indirect environmental costs of a windmill, but a good proxy for this arithmetic is simply to compare the resources consumed (in dollars) with the output produced (in dollar value of the electricity).

FORBES: Environmentalist, Spare That Tree

It is impossible for any one manager to significantly add value and it seems likely the vast number of managers will result in, at best, a market rate of return net of fees, with significantly greater investment and operational risk.

FORBES: Pensions Perilously Binging Upon Hedge Funds, Funds of Funds and Funds of Funds of Funds (March 20, 2007)

He will add that it was impossible to predict a year ago that the markets would be "stood on their head".

BBC: Warning on slow mortgage recovery