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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.
空心的樹
...a hollow cylinder.
中空圓筒
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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.
他看起來很年輕，膚色黝黑，五官分明，雙頰凹陷。
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N-COUNT
樹洞
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樹的樹洞里安了家。
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N-COUNT
凹陷處;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，小鎮臥在溫暖的山谷里。
...where water gathers in a hollow and forms a pond.
在那里水積聚在低洼處形成了池塘
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ADJ
空洞的;無用的;無價值的
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.
任何威脅說要叫警察來的話都是虛聲恫嚇。
...a hollow man who's coasted on charm for far too long.
長久以來一直依靠個人魅力取勝的膚淺之人
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ADJ
（笑聲等）虛偽的，不真誠的
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·皮克的干笑里沒有一點快樂。
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ADJ
（聲音）空洞的，沉悶回蕩的
A hollow sound is dull and echoing.
例句
...the hollow sound of a gunshot.
空洞的槍響
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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.
騾背被重負壓得塌下了。
...her high, elegantly hollowed cheekbones.
她凹陷有致的高顴骨