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| catastrophe A sudden, widespread disaster or calamity that greatly exceeds the resources of an area or region; disaster The result of a vast ecological breakdown in the relations between man and his environment, a serious and sudden event (or slow, as in drought) on such a scale that the stricken community needs extraordinary efforts to cope with it, often with outside help or international aid | |||
| afet: 18 短语, 4 学科 |
| 医疗的 | 1 |
| 数学 | 2 |
| 环境 | 12 |
| 财政 | 3 |