The shirt has been a common piece of clothing for men and women for a great many centuries.

许多世纪以来，衬衫是男女都穿的一种普通衣裳。

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Now,you will need a common nine-volt battery and a metal piece of money.

VOA: special.2010.12.08

"We were outraged that this piece of common land, that belonged to the people, had been commandeered in this way and for this purpose, " she said.

BBC: Jean Hutchinson: The threat is still with us

The only non-printed piece is a common hardware store nail used as its firing pin.

FORBES: Meet The 'Liberator': Test-Firing The World's First Fully 3D-Printed Gun

Lots of people are eager for the day when Facebook goes fully public, enabling the common investor to get a piece of the Facebook action.

FORBES: Do You Have a Right to Own Part of Facebook?