1
apply suction to sth
常见于医疗操作，表示用负压把液体或异物吸出。
The doctor applied suction to the wound to remove the fluid.
医生对伤口施加吸力以清除液体。
吸力
suctions — plural of suction
先理解核心含义，再看它在真实句子里的用法。
吸力
a force over an area produced by a pressure difference
The doctor applied suction to the wound to remove the fluid.
医生对伤口施加吸力以清除液体。
一种力,由于第二个空间内的压力低于第一个空间,将物质从第一个空间推入第二个空间。
A force which pushes matter from one space into another because the pressure inside the second space is lower than the pressure in the first.
由压力差产生的力
a force over an area produced by a pressure difference
一种力,由于两物体之间空间的压力低于外部压力而使两物体紧贴在一起。
A force holding two objects together because the pressure in the space between the items is lower than the pressure outside that space.
吸的动作
the act of sucking
The vacuum cleaner uses suction to pick up dust from the carpet.
吸尘器利用吸力把地毯上的灰尘吸起来。
She felt the strong suction of the drain pulling the water down.
她感觉到排水管强大的吸力把水往下拉。
The pump creates enough suction to lift water from the well.
这台泵产生的吸力足以把水从井里抽上来。
常见于医疗操作，表示用负压把液体或异物吸出。
The doctor applied suction to the wound to remove the fluid.
医生对伤口施加吸力以清除液体。
强调使用抽吸的方式。
During surgery, excess blood is removed by suction.
手术中，多余的血液通过吸力被清除。
也可说 produce suction 或 generate suction。
A vacuum cleaner creates suction to pick up dust from the floor.
吸尘器产生吸力，从地板上吸起灰尘。
Not this
The new phone has great suction for young people.
Use this
The new phone has great appeal for young people.
suction 是物理学中的“吸力/抽吸”，指因压力差产生的力，不能表示人受吸引、受欢迎。汉语“吸引”对应的常见词是 appeal/attraction，把“吸引”直译成 suction 会错误地把词义窄化为物理吸力。
Not this
The vacuum cleaner loses its suck.
Use this
The vacuum cleaner loses its suction.
suck 常作动词，表示“吸”这个动作；作名词时多指“吸吮”或非正式地“吸引力（魅力）”，不表示设备自身的“吸力”。表示吸尘器等的吸力应用名词 suction，这里需要把误当名词的动词 suck 改成名词。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
抽吸泵
The suction pump draws water from the well.
抽吸泵从井中抽水。
吸盘
He attached the hook to the wall with a suction cup.
他用吸盘把挂钩固定在墙上。
吸力
This vacuum cleaner has strong suction power.
这台吸尘器吸力很强。
吸入软管
Connect the suction hose to the inlet.
将吸入软管连接到入口。
吸入压力
Check the suction pressure before starting the engine.
启动发动机前检查吸入压力。
吸入阀
The suction valve controls the flow of fluid.
吸入阀控制流体流动。
Use suctions naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想：suction 以 suck（吸）开头，加名词后缀 -tion，即“吸力”——像吸尘器那样把东西吸过来。
语域：neutral 常见场景：物理/工程、日常器具、医疗 “suction”作名词时通常指因压力差产生的吸力，多用于物理、工程或日常器具（如吸尘器、抽水泵）等语境，也可见于医疗场景；口语和书面语都自然，属于中性用词。
这些词的重读元音都是 /ʌ/，后面都接 /kʃən/，所以与 suction 押韵。注意不要和拼写相近的 function /ˈfʌŋkʃən/、junction /ˈdʒʌŋkʃən/ 混淆，那两个词中发的是 /ŋkʃən/。
Dictionary facts from ECDICT, WIKTIONARY.