cave

• 指天然形成的地下空洞或一连串空洞，通常由侵蚀或火山活动等自然过程在岩层中形成。也可指人工开凿的洞穴或地下室。

A noun referring to a natural underground chamber or series of chambers, typically formed in rock by natural processes such as erosion or volcanic activity.

1. Natural underground chamberA2formal

   A large natural hole in the side of a cliff or hill, or underground.

   洞穴

   • The explorers discovered a deep cave hidden in the forest.
   • Bats often live in dark caves.
   • We took a tour of the limestone caves in the national park.

   同义词caverncavitygrottohollow

2. Wine cellarB2formal

   A storage area for wine, often underground.

   酒窖

   • The restaurant has an impressive wine cave with rare vintages.
   • They aged the cheese in a cool cave.
   • The wine cave maintains a constant temperature year-round.

   同义词cellarvaultwine cellar

• 动词，指塌陷、垮塌，也指屈服、让步或顶不住压力、劝说而妥协。

A verb used to indicate the act of collapsing or giving way, or yielding to pressure or persuasion.

1. To collapse or fall inB2formal

   To give way or collapse inward, often due to pressure or weakness.

   塌陷

   • The tunnel caved in after the earthquake.
   • The roof of the old mine caved under the weight of the snow.
   • The walls of the building caved during the storm.

   同义词bucklecollapsecrumblefall infoundergive waysubsideyield

   反义词endureholdresistsupportwithstand

2. To yield or surrenderB2informal

   To give in to pressure, demands, or persuasion; to stop resisting.

   屈服

   • He finally caved and agreed to their demands.
   • She caved under the pressure of the negotiations.
   • The government caved to public outcry and changed the law.

   同义词back downbucklecapitulatecrumblegive inrelentsubmitsuccumbyield

   反义词defyendurepersistresistwithstand

短语动词变体cave in