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PREP
从一边到另一边
If someone or something goes across a place or a boundary, they go from one side of it to the other.
例句
She walked across the floor and lay down on the bed...
她走过地板躺在了床上。
He watched Karl run across the street to Tommy.
他看着卡尔向街对面的汤米跑去。
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PREP
横跨;横过;穿过
If something is situated or stretched across something else, it is situated or stretched from one side of it to the other.
例句
...the floating bridge across Lake Washington in Seattle...
横跨在西雅图华盛顿湖上的浮桥
He scrawled his name across the bill...
他在账单上草草地签了名。
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PREP
（放置或覆盖）在…上
If something is lying across an object or place, it is resting on it and partly covering it.
例句
She found her clothes lying across the chair...
她发现自己的衣服堆放在椅子上。
The wind pushed his hair across his face.
他的发丝随风拂面。
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PREP
在…对过；在…对面
Something that is across something such as a street, river, or area is on the other side of it.
例句
Anyone from the houses across the road could see him...
马路对面房子里的任何一个人都能看见他。
When I saw you across the room I knew I'd met you before.
我在房间那头看见你时就知道我曾见过你。
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ADV
朝；向
If you look across at a place, person, or thing, you look towards them.
例句
He glanced across at his sleeping wife...
他朝熟睡的妻子看了一眼。
She rose from the chair and gazed across at him.
她从椅子上站起身，远远地看着他。
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PREP
（表情展露）在（脸）上
You use across to say that a particular expression is shown on someone's face.
例句
An enormous grin spread across his face...
他咧着大嘴笑了。
For a moment a shadow seemed to pass across Roy's face.
一瞬间罗伊脸上似乎闪过一丝忧伤。
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PREP
（打）在（脸、头等部位）上
If someone hits you across the face or head, they hit you on that part.
例句
Graham hit him across the face with the gun.
格雷厄姆用枪击打他的脸部。
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PREP
在…各处；遍及
When something happens across a place or organization, it happens equally everywhere within it.
例句
The film 'Hook' opens across America on December 11...
电影《铁钩船长》12月11日在美国全线上映。
Thousands of farmers from across Europe have held a huge demonstration in the centre of Brussels...
来自欧洲各地的数千农民在布鲁塞尔市中心举行了大规模的示威游行。
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PREP
超越，跨越（政治、宗教、社会隔阂等）
When something happens across a political, religious, or social barrier, it involves people in different groups.
例句
...parties competing across the political spectrum...
政治纷争中的各党派
We want to promote cosmetics that appeal across the colour barrier.
我们想推销各种肤色的人都喜欢的化妆品。
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ADV
（测量时）宽…
Across is used in measurements to show the width of something.
例句
This hand-decorated plate measures 30cm across...
这个手绘盘子直径为30厘米。
The snails are no larger than one centimetre across.
这些蜗牛体宽不超过1厘米。