研究人员表示，为了确保城市健康发展，种植和保护树木是必要的，但我们还需要做更多的工作来更好地了解城市树木，因为它们可能与乡村森林不同。
Researchers say planting and protecting will be needed to make sure cities can develop healthily, but more needs to be done to have a better understanding of city trees which may be different from countryside forests.
保护树木就是保护自己。
这项发表在《公共科学图书馆·综合》上的研究提醒科学家们鼓励社区采取更多措施种植和保护树木。
The study, published in PLOS ONE, has reminded scientists to encourage communities to do more to plant and protect trees.
我们应保护树木，不让它们受破坏。
我们必须保护树木，不买象牙。
保护树木，注册个博客吧。
首先，我们必须保护树木。
保护树木，就是保护自己。
我们应该保护树木、花草。
保护树苗是我们的责任。
我们应保护树木，不让它们受破坏。破坏。
必须保护树木免受霜冻。
我们必须做一些事情来保护树木免遭砍伐。
We must do something to protect the trees from being cut down.
有保护树木的法律吗？
第四，我们应保护树木，我们应该种更多的树。
Fourth, we should protect the trees and we should plant more trees.
保护树木是第一。
服务主密钥直接或间接地保护树中的所有其他密钥。
The service master key directly or indirectly secures all other keys in the tree.
我们看见一颗国家级保护树木国槐，有五百多年历史了。
We saw a national protect trees scholar, has a history more than five hundred years.
他们从来没有想到要保护树木，因为树木似乎取之不尽。
They probably never thought about protecting trees because the supply seemed to be endless.
所做的工作后，我们提出了一个板，提醒人们保护树木。
After getting the work done, we put up a board reminding people to protect the trees.
植树节是一个鼓励个人和团体一起种树保护树木的节日。
Arbor day is a holiday in which individuals and groups are encouraged to plant and care for trees.
做完这工作后，我们提出了一个提醒人们保护树木的董事会。
After getting the work done, we put up a board reminding people to protect the trees.
我们不能只从树木那儿索取。我们必须有所作为，保护树木。
We cannot just take from trees. We must do something to protect them.
为了保护树木，我们不应该再为了制作一次性筷子而砍倒树木。
In order to protect trees, we should not cut down trees for throwaway chopsticks.
但是，如果保护树林有钱可赚的话他的观点（做法）可能会改变。
But if money to preserve trees were on the table his views might change.
我想如果每个人都能保护树木，那么我们将会拥有大片的丛林。
I thought if everybody protect the tree, we will have a large jungle.
我想如果每个人都能保护树木，那么我们将会拥有大片的丛林。
I thought if everybody protect the tree, we will have a large jungle.
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