名词
1. There is a need for the conservation of trees, or there will soon be no forests.
有必要保护树木，否则不久将会没有森林了。
2. conservation的翻译
2. Conservation is one way to make sure we have enough energy in the future.
对自然资源的保护是保证我们将来有足够的能源的一种办法。
3. However, conservation alone is not the answer.
然而，仅仅靠节约还不是解决问题的办法。