If a man wanted to be good at his trade, he had to practice.

Maybe he'd like to take a turn at his old trade?

He worked at his trade, and saved money to go west.

Perhaps, I thought, he was new at his trade and did not understand how ideal the conditions were.

When families left the farms, children worked with their parents at whatever trade the adults took up.

And a man must work at his trade, which wise wives know.

But they didn't work very hard at their trade.

He died in 1724, having spent fifty-two years at his trade.

William apprenticed at his father's trade, then went into business for himself.

For a long time she didn't work at her trade, but after Dad had his heart attack, she went back.