n.灾难；彻底的失败；不幸；祸患 变形： 复数：disasters 双语释义：n.(名词)[C]灾难,灾祸 sth very bad that happens and that may hurt a lot of people[C][U]彻底的失败 complete failure英英释义： disaster[ ,di'zɑ:stə ]n.a state of extreme (usually irremediable) ruin and misfortune"his policies were a di