pop-up

• 名词，指一种书（通常为儿童书），页面上有立体构造，打开时立起；也指棒球中短而高飞的内野飞球。

A noun referring to a book, typically for children, with pages that contain three-dimensional structures that rise when opened, or a short high fly ball in baseball.

1. Pop-up bookA2formal

   A book, often for children, with pages that contain three-dimensional structures that rise when the page is opened.

   立体书

   • The child was delighted by the pop-up book about dinosaurs.
   • She bought a pop-up book for her nephew's birthday.
   • Pop-up books are a creative way to engage young readers.

   同义词pop-up book

2. Pop-up in baseballB1informalamericansport

   A short, high fly ball hit in baseball that is easy to catch.

   高飞球

   • The batter hit a pop-up that the shortstop caught easily.
   • He swung too hard and sent a pop-up straight to the pitcher.
   • The crowd groaned as the pop-up ended the inning.

   同义词pop fly

   反义词grounderline drive