curveball名詞1曲球、曲線球棒球His curveball drops sharply just before it reaches the plate.他的曲球在進壘前會急遽下墜。2意外的難題、突發狀況口語Life threw us a curveball when the factory suddenly closed.工廠突然關閉，生活給我們出了一道難題。片語1出難題、打亂計畫口語The interviewer threw me a curveball with that last question.面試官最後那題讓我措手不及。