An estimated 60,000 hours of painstaking voluntary labour saw the ship refurbished close to its original state.

A "Simpsons" episode is the product of painstaking collaborative labor.

With rebuilt engines, fresh parts and painstaking labor, they expect to fly it out, completing an adventure begun 47 years ago.

Hours of painstaking labour with many retakes to obtain perfection.

Writing code, to be sure, is painstaking labor because computers are so literal-minded.

After more than five years of painstaking labour, calculations and checking, the project was adopted.

Her manuscripts were an investment of two years' painstaking labour.

Actually, it is an intense process that requires tremendous amounts of research and lots of painstaking labor.

As a result of their hard and painstaking labor, the land became conducive to live in.

But I was stunned when I considered the painstaking labor with no promise of reward, or even end, in sight.