Benim bir zarfa, bir parça kağıda ve kurşun kaleme ya da bir dolma kaleme ihtiyacım var. - I need an envelope, a piece of paper, and a pencil or a pen.
Tom kız kardeşine bir parça kek kesti. - Tom cut his sister a piece of cake.
الإنجليزية - الإنجليزية
تعريف it's a piece of cake في الإنجليزية الإنجليزية القاموس.
(Slang) it is very easy (e.g.: "My friend said that the test was hard but I found it was a piece of cake")