postcard/'pəʊstkɑːd $ 'poʊstkɑːrd/

n. a card with a picture on the front, used for sending messages by post without an envelope

n. [C] 明信片：Kate sent me a postcard from America. 凯特从美国给我寄了张明信片。

◇receive a postcard 收到明信片

构词post + card