He helped to dig for coal.

他帮忙挖煤。

youdao

I dig for the facts.

我挖掘事实。

youdao

In those days we often went to dig for wild vegetables.

那时候我们常常出去挖野菜。

《新英汉大辞典》

The large companies used huge machines to dig for gold.

VOA: special.2009.02.11

To prepare your garden for carrots, dig up the soil,loosen it and turn it over.

VOA: special.2009.02.24

He says the company traveled to the U.S.to find out if American consumers will dig deep into their pockets for 3D sets.

VOA: standard.2010.03.11

For an instant I wanted to go to the library and dig for an obituary.

NEWYORKER: Lucky Alan

An exhibition about the archaeological dig for Richard III's remains has attracted 15, 000 visitors in its first two weeks.

BBC: Richard III Blue Boar painting bought by university

It is now standard practice to dig for wage and hour abuses when clients come in with any employment-related issues.

FORBES: Magazine Article