"put the toothpaste back in the tube" in Chinese (Simplified)
Definition
这个表达意思是：一旦某事发生或说出口，就无法再撤回，就像牙膏挤出来后无法再放回管子里。
Usage Notes (Chinese (Simplified))
非正式，常用于谈论错误、泄露秘密或难以挽回的局面。类似于'覆水难收'，强调后果不可逆转。
Examples
Once you share that photo online, you can't put the toothpaste back in the tube.
一旦你把那张照片分享到网上，就再也无法**把牙膏放回管子里**了。
He realized his mistake, but it was too late to put the toothpaste back in the tube.
他意识到自己的错误，但已经太晚，无法**把牙膏放回管子里**了。
You can't put the toothpaste back in the tube after telling a secret.
说出秘密后，你就**无法把牙膏放回管子里**了。
I know you regret it, but it's impossible to put the toothpaste back in the tube now.
我知道你后悔了，但现在已经**无法把牙膏放回管子里**了。
Deleting that message won't put the toothpaste back in the tube. The damage is done.
删除那条信息也**无法把牙膏放回管子里**，伤害已经造成了。
Sometimes, a single mistake is enough to prove you can't put the toothpaste back in the tube.
有时候，一个失误就足以证明你**无法把牙膏放回管子里**。