pop up

• 短语动词，用于表示某事物突然或意外地出现，或某人未经事先通知就到来。

A phrasal verb used to indicate something appearing suddenly or unexpectedly, or someone arriving without prior notice.

不可数 · 不及物 · 短语动词，不带宾语

1. Appear suddenlyinformal

   To appear or happen unexpectedly or suddenly.

   突然出现

   • A notification popped up on my screen.
   • Old friends often pop up when you least expect them.
   • New problems keep popping up during the project.

   同义词appearcrop upemergematerializeshow upspring upsurfaceturn up

   反义词disappearrecederetreatvanish

2. Open quicklyinformal

   To open or move upward quickly, often with a popping sound.

   弹出

   • The umbrella popped up when she pressed the button.
   • The lid of the box popped up suddenly.
   • The toast popped up from the toaster.

   同义词fly open

基本动词pop