| 1. | The mamba is mainly threatened by habitat destruction
黑曼巴主要地被生境破坏威胁。 |
| 2. | Natural populations are small and susceptible to disturbance and habitat destruction
种群小，易受生境破坏影响。 |
| 3. | Habitat destruction is the main threat to the existing tiger population
老虎的生存环境遭到破坏是威胁它们生命的主要因素。 |
| 4. | Threats to survival : over - hunting and habitats destruction are the main threats in china
威胁因素：传统认为大鲵肉味鲜美，捕捞为主要威胁因素，此外是生境破坏。 |
| 5. | Salmon once thrived here , but over the years dams , overfishing and habitat destruction have diminished their numbers
鲑鱼曾在这一带繁殖过，但由于几年来的筑坝、过度捕捞和栖息地的破坏，鲑鱼数量已急剧锐减。 |
| 6. | Salmon once thrived here , but over the years dams , overfishing and habitat destruction have diminished their numbers
大马哈鱼以前在那里繁衍生机，但是逐年的破坏，过量捕捞和栖息地的毁坏使它们的数量大大减少。 |
| 7. | Salmon once thrived here , but over the years dams , overfishing and habitat destruction have diminished their numbers
鲑鱼曾经在此处生存，但年复一年，人类的筑坝、过量捕鱼及围河生活已经大大减少了他们的数量。 |
| 8. | Salmon once thrived here , but over the years dams , overfishing and habitat destruction have diminished their numbers
大马哈鱼曾经在这里繁盛，但是，几年来，大坝，过渡的钓鱼和栖息的破坏，已经造成了大马哈鱼数量的减少。 |
| 9. | Unsustainable exploitation of natural resources causes habitat destruction or alternation , and eventually extinction of species
然而，人类肆意开发自然资源，完全违背持练使用原则，结果生境遭破坏或改变，最终导致野生生物绝种。 |
| 10. | The existing legislation is not adequate to protect ecologically important species , especially which are rare or endangered due to habitat destruction
现存法例不足以保护具生态价值的物种，尤其是因生境破坏而导致数量减少或濒危的物种。 |
