How To Use Staff of life In A Sentence

• The banana, planted with a careless hand, supplies the staff of life, besides thatch, fuel, and fibre for nets and lines: when they want cereals, maize, holcus, and panicum will grow almost spontaneously. Two Trips to Gorilla Land and the Cataracts of the Congo
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• Cookie is my staff of life.
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• Bread is the staff of life. 
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• Bread is the staff of life. 
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• As an example of the simple sandwich's workaday job as the staff of life, this is admittedly extreme. Times, Sunday Times
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