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explore a cave
The explorers discovered a hidden cave.
探险家发现了一个隐藏的洞穴。
洞穴
caves — plural of cave
先理解核心含义，再看它在真实句子里的用法。
洞穴
a natural underground space large enough for a person to enter
The explorers discovered a hidden cave.
探险家发现了一个隐藏的洞穴。
地下或悬崖、山坡上自然形成的大洞穴。
A large, naturally-occurring cavity formed underground or in the face of a cliff or a hillside.
一种地质构造,由可从地面或海面进入的地下封闭空间组成
a geological formation consisting of an underground enclosure with access from the surface of the ground or from the sea
土或岩石中的洞、凹陷或缝隙,无论是天然的或人造的。
A hole, depression, or gap in earth or rock, whether natural or man-made.
储藏地窖,尤指存放葡萄酒或奶酪的。
A storage cellar, especially for wine or cheese.
They discovered an ancient cave with paintings on the walls.
他们发现了一个古老的洞穴，墙壁上有绘画。
The hikers took shelter in a small cave during the storm.
徒步旅行者在暴风雨期间在一个小山洞里躲避。
Bats often live in dark caves.
蝙蝠通常生活在黑暗的洞穴里。
The explorers discovered a hidden cave.
探险家发现了一个隐藏的洞穴。
cave 前通常用冠词或复数。
Bears sometimes live in caves.
熊有时住在洞穴里。
cave in 是不及物短语动词，不能直接跟宾语。
The tunnel caved in after the earthquake.
地震后隧道塌陷了。
Not this
He caved under the pressure.
Use this
He caved in under the pressure.
动词cave表示‘屈服’或‘塌陷’时，是不及物动词，必须与介词in连用构成短语cave in。缺少in会导致句子不完整或语义不清。
Not this
We visited cave during the trip.
Use this
We visited a cave during the trip.
cave是可数名词，在单数形式前需要加上不定冠词a或an，或者使用复数形式。缺少冠词是常见的冠词缺失错误，影响语法正确性。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
深的洞穴
The explorers ventured into a deep cave.
探险者们冒险进入了一个深的洞穴。
黑暗的洞穴
The bear hibernated in a dark cave.
熊在一个黑暗的洞穴里冬眠。
洞穴入口
We saw footprints near the cave entrance.
我们在洞穴入口附近看到了脚印。
洞穴探索
Cave exploration requires special equipment.
洞穴探索需要特殊装备。
塌陷
The tunnel caved in after the earthquake.
地震后隧道塌陷了。
在压力下屈服
He caved under pressure and signed the contract.
他在压力下屈服并签了合同。
塌陷；屈服
The roof of the tunnel caved in during the storm.
暴风雨中隧道顶部塌陷了。
穴居人；粗野的人
He behaves like a cave man at the dinner table.
他在餐桌上表现得像个粗野的人。
柏拉图洞穴中的囚犯把墙上的影子误认为现实。
In the allegory, the prisoners are chained in a cave and can only see shadows.
在这个寓言中，囚犯被锁在洞穴里，只能看到影子。
Use caves naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
cave 音似“开屋”，想象打开一个洞穴的入口，记住是“洞穴”的意思。
[object Object]
作名词时指洞穴，可数；作动词时常用于cave in短语表示塌落或屈服。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.