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Pennsylvania truss
Pennsylvanian
Pennsylvanian era
Pennsylvanian period
Pennsylvanian system
Penny
penny ante
penny arcade
penny bank
penny black
penny blood
penny dreadful
penny farthing
penny gaff
penny pincher
penny shape crack
penny shaped crack
penny stock
penny wedding
penny wheep
penny whistle
penny wise and pound foolish
penny-a-line
penny-a-liner
penny-farthing
penny-halfpenny
penny-in-slot machine
penny-in-the-slot
penny-pincher
penny-pinching
Pennsylvanian
Pennsylvanian era
Pennsylvanian period
Pennsylvanian system
Penny
penny ante
penny arcade
penny bank
penny black
penny blood
penny dreadful
penny farthing
penny gaff
penny pincher
penny shape crack
penny shaped crack
penny stock
penny wedding
penny wheep
penny whistle
penny wise and pound foolish
penny-a-line
penny-a-liner
penny-farthing
penny-halfpenny
penny-in-slot machine
penny-in-the-slot
penny-pincher
penny-pinching
Pennsylvania truss
折弦(再)分桁架