段落翻譯

3-7第14段
we need baseline data on the condition of world's ecosystems to see how they are changing and to devlop effective strategies for preventing or slowing their degradation

我們需要關於世界生態系的情況基礎線性數據，看他們怎們改變和開發出有效的策略來防止或減慢他們的退化