urgency這個英語單詞的詞性是名詞，urgency的名詞含義為緊急，催促，緊急的事。
例句：
The rainy season is coming. It's a matter of great urgency to repair the drainage and irrigation equipment.
雨季就要到了，修理排灌設(shè)備是急如星火的任務(wù)。
He was boiling hot all over, his mind tense with a great sense of urgency.
他全身滾熱，心急如焚。
In case of urgency, call the police.
一旦發(fā)生緊急情況，打電話給警察。