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Topic: DAILY LIFE


jack-knife

1 noun
     
jack-knife1 plural jack-knives [countable]
1D a knife with a blade that folds into its handle
2 a dive in which you bend at the waist when you are in the air

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AC bag bar box(n) box(v) button cable can card cart case channel chart clip digital female file fitness flag flat frame gas gut handle health hip key label LCD lead library light link log male manual material meter mode net oil pack package paper paste pocket portfolio screen seat service(n) service(v) setting sort spring staff standard switch tab tag(n) tag(v) thread top tube watch

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