It's raining cats and dogs

US /ɪts ˌreɪnɪŋ ˌkæts ənd ˈdɔɡz/
UK /ɪts ˌreɪnɪŋ ˌkæts ənd ˈdɔɡz/
"It's raining cats and dogs" picture
1.

mưa như trút nước, mưa xối xả

raining very heavily

:
I can't go out now, it's raining cats and dogs!
Tôi không thể ra ngoài bây giờ, trời đang mưa như trút nước!
We had to cancel the picnic because it was raining cats and dogs.
Chúng tôi phải hủy buổi dã ngoại vì trời mưa như trút nước.