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ADJ
空的;空心的;中空的
Something that is hollow has a space inside it, as opposed to being solid all the way through.
例句
...a hollow tree.
空心的树
...a hollow cylinder.
中空圆筒
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ADJ-GRADED
凹的;凹陷的
A surface that is hollow curves inwards.
例句
He looked young, dark and sharp-featured, with hollow cheeks.
他看起来很年轻，肤色黝黑，五官分明，双颊凹陷。
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N-COUNT
树洞
A hollow is a hole inside a tree.
例句
I made my home there, in the hollow of a dying elm.
我在一棵快要枯死的榆树的树洞里安了家。
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N-COUNT
凹陷处;低洼地
A hollow is an area that is lower than the surrounding surface.
例句
Below him the town lay warm in the hollow of the hill.
在他下方，小镇卧在温暖的山谷里。
...where water gathers in a hollow and forms a pond.
在那里水积聚在低洼处形成了池塘
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ADJ
空洞的;无用的;无价值的
If you describe a statement, situation, or person as hollow, you mean they have no real value, worth, or effectiveness.
例句
Any threat to bring in the police is a hollow one.
任何威胁说要叫警察来的话都是虚声恫吓。
...a hollow man who's coasted on charm for far too long.
长久以来一直依靠个人魅力取胜的肤浅之人
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ADJ
（笑声等）虚伪的，不真诚的
If someone gives a hollow laugh, they laugh in a way that shows that they do not really find something amusing.
例句
Murray Pick's hollow laugh had no mirth in it.
默里·皮克的干笑里没有一点快乐。
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ADJ
（声音）空洞的，沉闷回荡的
A hollow sound is dull and echoing.
例句
...the hollow sound of a gunshot.
空洞的枪响
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VERB
使凹陷;使下陷
If something is hollowed, its surface is made to curve inwards or downwards.
例句
The mule's back was hollowed by the weight of its burden.
骡背被重负压得塌下了。
...her high, elegantly hollowed cheekbones.
她凹陷有致的高颧骨