onto /ˈɑːntʊ/ preposition Learner's definition of ONTO
1
: to a position that is on (something, such as a surface, area, or object)到…之上 -
We climbed onto the building's roof.我们爬上了这座建筑的顶端。
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The book fell onto the floor.书掉在了地板上。
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The water spilled onto the floor.水洒在了地板上。
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The cowboy leaped onto his horse.牛仔跳上了马。
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Transfer the data onto a disk.把数据转存到磁盘上。
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Turn left onto Third Street at the traffic light.在红绿灯处左转进入第三大街。
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often used figuratively常用作比喻 2
: in a direction that allows you to get to or see (something)向；朝向；通往 -
The door opens onto a balcony. [=when you go through the door you are on a balcony]这扇门通往阳台。
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The dining hall opens onto a courtyard. [=you can enter the courtyard from the dining hall]餐厅通往院子。
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The bedroom window looks (out) onto the bay.卧室的窗户面向海湾。
3
a —
used to say that someone knows about what someone is doing or has done了解；掌握 b —
used to say that someone is becoming aware of or is finding something正意识到；发现 -
Scientists believe they are onto something big. [=scientists believe they are close to making an important discovery]科学家们相信他们很快就会有重大发现。
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When the crowd responded to the show so positively, we realized we were onto something. [=we had done/discovered something important, special, etc.]当人们对此次演出的反响如此积极时，我们意识到我们确实做得很好。
4
chiefly British : in the process of talking to (someone) usually to tell or ask something询问；谈论