tocsin

n.

警钟，警报；

1. There was a tocsin ringing from church steeples.
   教堂塔尖上传来警钟声。
2. The tocsin rang impatiently, but there was not any other help.
   警钟紧急地敲着，却没有别的救援出现。

TOCSIN
Tocsin
Tehran's tocsin
Sounding the Tocsin: NSC 68 and the Soviet Threat
Pagetoid melanocytosis: tease or tocsin?
TOCSIN: a proposed dashboard of indicators to control healthcare-associated infections
Sound the tocsin! Beware adverse effects of lung inflammation early in gestation.
Fire Brigade or Tocsin? NATO's ACE Mobile Force, Flexible Response and the Cold War
Dermal Epstein Barr virus--associated leiomyosarcoma: tocsin of acquired immunodeficiency syndrome in two children
Prostate-Specific Antigen Levels, Prostate-Specific Antigen Kinetics, and Prostate Cancer Prognosis: A Tocsin Calling for Prospectiv...