The National Arbor Day Foundation has challenged many cities to earn its "Tree City USA" flag by planting and protecting more trees.
国家植树节基金会向许多城市发起挑战，要求它们通过种植和保护更多的树木来赢得那面“美国树城”的旗帜。
Since the database was set up, the Woodland Trust has added over 180,000 trees, but it believes there are many more to be found.
自从数据库建立以来，林地信托已经加入了18万多棵树，但它认为还有更多的树有待发现。
He says that in the past 10 years, he has planted many wild trees.
在过去10年中，他已经种植了许多野生树木。
Worse, many of the trees in the area were chopped down, so now she has to trek further to reach the jungle to find firewood and to pick whatever produce she can find.
更糟的是，这篇区域的许多树都被砍掉了，现在她不得不走得更远才能到达树丛，去找烧火的木头，采摘任何她能找到的可供食用之物。
The water is very clean, I can even see the fish and the mountain has many green trees.
水很清澈，我几乎能看到鱼，山上有很多绿油油的树。
In many parts of the world, large Numbers of trees have been cut down and the ecological balance of nature has been disturbed.
在世界很多地方，大量的树木遭到砍伐，自然界的生态平衡遭到破坏。
Qingdao has many historic buildings hidden in the afforested mountains and green trees, among which many were the residences of some men of letters of modern China.
青岛有许多历史建筑掩映在青山绿树之中，其中多座后来成为了中国早期文人墨客在青岛的居所。
Each species has varieties ranked underneath it, and there are many varieties of arabica coffee trees.
每个物种的品种排名下面，有许多品种的阿拉伯咖啡树。
Every day many people take exercise in the park which has a lot of trees and beautiful flowers.
每天有很多人在那个有很多树和美丽花朵的公园里做运动。
In recent years, it has been reported that a large number of people cut trees down without a plan and triggered many problems.
近年来，据报道很多人对树木乱砍乱伐，引发了很多问题。
He has a garden with many trees, flowers and birds.
他有一个有许多树、花和鸟的花园。
The result is increased acidity in lakes, which has curtailed the ability of many fish to reproduce, and in the soil, which has slowed the growth of trees and increased their vulnerability to disease.
酸雨现象不但导致湖泊酸性提高，使许多鱼类繁殖能力下降；而且随着土壤里酸性物质的增加，树木的生长速度开始放慢，对疾病的抵抗力下降。
Many things have been done and great progress has been made in the greenization of our cities in recent years. Many trees have been planted and much care has been taken of the planted trees.
最近几年，在绿化我们的城市方面许多事情都已经完成，并取得了很大进展的，许多树木已种植和许多树木已经妥善照顾。
Many things have been done and great progress has been made in the greenization of our cities in recent years. Many trees have been planted and much care has been taken of the planted trees.
最近几年，在绿化我们的城市方面许多事情都已经完成，并取得了很大进展的，许多树木已种植和许多树木已经妥善照顾。
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