单词	cave
释义	noun | verb cavecave1 /keɪv/ ●●● noun [countable] Etymology ETYMOLOGYcave1 Origin: 1200-1300 Old French Latin cava, from cavus hollow a large natural hole in the side of a cliff or hill, or under the ground [Origin: 1200–1300 Old French, Latin cava, from cavus hollow] noun | verb cavecave2 verb Etymology ETYMOLOGYcave2 Origin: 1700-1800 Probably from calve to cave in (18-19 centuries), perhaps from Flemish inkalven; influenced by ➔ CAVE1 Verb Table VERB TABLE cave Simple Form Present I, you, we, they cave he, she, it caves Past I, you, he, she, it, we, they caved Present perfect I, you, we, they have caved he, she, it has caved Past perfect I, you, he, she, it, we, they had caved Future I, you, he, she, it, we, they will cave Future perfect I, you, he, she, it, we, they will have caved Continuous Form Present I am caving he, she, it is caving you, we, they are caving Past I, he, she, it was caving you, we, they were caving Present perfect I, you, we, they have been caving he, she, it has been caving Past perfect I, you, he, she, it, we, they had been caving Future I, you, he, she, it, we, they will be caving Future perfect I, you, he, she, it, we, they will have been caving Collocations COLLOCATIONS► caved in to pressure  The department caved in to pressure from environmental groups. cave in phrasal verb1to finally stop opposing something, especially because someone has persuaded or threatened you: cave in to The department caved in to pressure from environmental groups.2if the top or sides of something cave in, they fall down or toward the inside:  A section of the mine caved in.—cave-in noun
随便看	paling palisade pall palladium pallbearer pallet palliate palliation palliative pallid pallidness pallor palm Palmer, Arnold palmetto palmist palmistry palm oil palm reader palm reading Palm Sunday palmtop palm tree palmy palomino

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