276. 温室效应 green-house effect
277. 沙漠化 desertification
278. 过度放牧 overgrazing
279. 过度捕鱼 over-fishing
280. 滥砍乱伐 clear-cutting
281. 退耕还林 return cultivated land to forest
282. 沙尘暴 sand storm
283. 生态危机 ecological forest
284. 破坏生态平衡 destroy / upset the ecological balance
285. 自然保护区 nature reserve
286. 环境绿化 environmental greening
287. 禽流感 bird flu
288. 疯牛病 mad cow disease/ BSE
289. 口蹄疫 foot-and-mouth disease
290. 非典 severe acute respiratory syndrome (SARS)
291. 偷税﹑骗税 tax evasion and tax fraud
292. 扫黄打非 eliminate pornography and illegal publications
293. 严打斗争 strike-hard campaign
294. 公正合理的国际政治经济新秩序
a new and rational new international political and economic order
295. 外交纷争 diplomatic disputes
296. 维护世界和平 safeguard world peace
297. 国际惯例 international common practice
298. 民族分裂主义 ethnic separatism
299. 宗教极端主义 religious extremism
300. 世界的基本格局 basic world pattern
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