it is a Deal
這是一筆交易
口語·確認協議或交易
英文釋義
an agreement or arrangement has been made and is agreed upon
例句
You pay half and I'll do the rest? It is a deal!
典故來源
源自商業談判中雙方握手表示協議達成的傳統,后用于日常確認約定。