...emergency-room... (Para. 2)
Meaning: a place in a hospital where people hurt in accidents are taken to for medical help.
This is in American English. In British English this room is called "casualty". Look at the following sentence:
They rushed her to Casualty but she was dead on arrival. (BrE) 他们赶紧把她送到急救室, 但是她刚到那儿就死了。