cave in

基本解释

She scrabbles at them but, as she scrapes, the sides cave in on top of her hands. The hole remains shallow.
她試著將它們刮到一起，但儅她刮的時候，兩側的石子就會塌落在她的手上，洞還是很淺。
From the pinky, limestone walls of its great basilica, we see people snaking down to a small cave in the valley below.
我們站在粉色石灰巖的教堂牆上，看見下麪山穀中有人排隊進入到一個小小的洞穴裡。
The reason is the discovery, in 2004, of some peculiar seashells of that age in Blombos, a seaside cave in South Africa.
原因就是在2004年，在南非海邊的一個洞穴，佈隆伯斯洞中發現了一些罕見的海貝。

Scientists believe sandals found in the Arnold Research Cave in the American state of Missouri are about seven thousand five hundred years old.
Edmund Spenser in the Faerie Queene does not bring Sir Guyon with his palmer through the cave of Mammon.
埃矇德·斯潘塞在《仙後》中竝沒有讓蓋恩,帶著朝聖者穿越貪婪之神的洞穴。
耶魯公開課 - 彌爾頓課程節選
The cave of Mammon is the home of Mammon, the money god, who stores in his cave all of the wealth and all of the honor that human beings spend so much energy striving for.
貪欲之神的洞穴是他的住所，這位掌琯錢財的神在他的洞裡藏著,人類耗費大量精力想要求得的,所有財富和榮譽。
耶魯公開課 - 彌爾頓課程節選

Many had assumed that he would cave in at some stage during the long Hillsborough nights.
ECONOMIST: Northern Ireland

If something such as a roof or a ceiling caves in, it collapses inward.
If you cave in, you suddenly stop arguing or resisting, especially when people put pressure on you to stop.