put to sleep
成語所屬單字sleep
put to sleep — 慣用語
1. to give an animal a drug or injection that causes its death without pain, usuall
1.慣用語
釋義
安樂死（動物）
to give an animal a drug or injection that causes its death without pain, usually because it is very ill or suffering.
例句
The vet had to put their old dog to sleep because it was in too much pain.
After the cat was diagnosed with a serious illness, the family made the difficult choice to put her to sleep.