emergency call的用法和樣例：
例句
- Excuse me. This is the operator; you have an emergency call from to hang up for a minute, please.
對不起，我是接線員，你有一個從 ... 到 ... 的緊急電話，請你掛斷一會兒。 - The fire-brigade answered the emergency call but there was no fire it was all a hoax.
消防隊接到報警電話后採取了行動,但是並沒有火災--這完全是一場惡作劇。
