学术类雅思 (8分及以上) - 灾难

an event causing great and often sudden damage, distress, or destruction

不幸

a sudden, violent natural disaster that drastically alters the earth's landscape

地球表面的突然转变（地质学）

action that breeds severe damage or destruction

破坏性行动

an extremely intense and destructive fire

巨大的大火

a cause of widespread suffering or affliction

痛苦或折磨的原因

a smaller earthquake or tremor that follows the main shock of a seismic event

余震

an earthquake caused by underground movement or volcanic activity

地震

a severe flood of water

洪水

the act of saving or rescuing a ship or its cargo from loss, damage, or destruction

抢救财货

the point on the surface of the earth vertically above the focus of an earthquake where its effects are felt most strongly

震中心

a tornado occurring over a body of water, characterized by a funnel-shaped cloud filled with water droplets or spray

海上台风