If something moves onto or is put onto an object or surface, it is then on that object or surface.
I took my bags inside, lowered myself onto the bed and switched on the TV.
我把包拎进屋,往床上一倒,然后打开了电视。
You can sometimes use onto to mention the place or area that someone moves into.
The players jogged onto the field.
运动员们慢慢跑进赛场。
At exactly 6:00 p.m., Marcia drove onto the motorway.
下午六点整,玛西娅开车上了高速公路。
You can use onto to introduce the place towards which a light or someone's look is directed.
the metal part of the door onto which the sun had been shining.
在阳光照耀下闪闪发亮的门的金属部分。
The colours rotated around on a disc and were reflected onto the wall behind.
圆盘上色彩旋转,反射到后面的墙上。
If a door or room opens onto a place, that place is directly in front of it.
The door opened onto a well-lit hallway.
这扇门对着一个照明很好的门厅。
When you change the position of your body, you use onto to introduce the part your body which is now supporting you.
As he stepped backwards she fell onto her knees, then onto her face.
他往后退步时,她双膝跪倒在地,接着脸也着地。
Puffing a little, Mabel shifted her weight onto her feet.
梅布尔有些气喘,将她身体的重心移到了双脚上。
When you get onto a bus, train, or plane, you enter it in order to travel somewhere.
As he got on to the plane, he asked me how I was feeling.
他上飞机时问我感觉如何。
Onto is used after verbs such as 'hold', 'hang', and 'cling' to indicate what someone is holding firmly or where something is being held firmly.
The reflector is held onto the sides of the spacecraft with a frame.
发射器通过支架牢牢地固定在宇宙飞船的各个侧面。
If people who are talking get onto a different subject, they begin talking about it.
Let's get on to more important matters.
咱们谈些更重要的事吧。
You can sometimes use onto to indicate that something or someone becomes included as a part of a list or system.
The Macedonian question had failed to get on to the agenda.
马其顿问题没能提上议事日程。
The pill itself has changed a lot since it first came onto the market.
自从首次进入市场以来,这种药片有了很大改变。
If someone is onto something, they are about to discover something important.
He leaned across the table and whispered to me, 'I'm really onto something.'
他从桌上俯过身来对我低声说道,“我真的要有重大发现了。”
If someone is onto you, they have discovered that you are doing something illegal or wrong.
I had told people what he had been doing, so now the police were onto him.
我已经把他的所作所为告诉了大家,所以警察正在追查他。