The average model is assembled in nine months, requiring 32,000 hours of labor.

After eight hours of labor June had finally released her burden.

The bridge cost $732,000 to build, and took 6,400 hours of labor.

The project took more than 4,000 hours of highly specialized labor.

After an hour of fruitless labor, I asked for help.

They got it free after an hour of aggravating labor.

Some hours of concentrated labor were required, but in the end his success was assured.

He also said 21,000 hours of labor went into it.

For lunch, after five hours of labor, he has a Pepsi.

After relentless hours of labor the men were close to exhaustion.