But if we properly understand how organisms in the environment protect us, maybe we can give a vaccine or mimic their effects with some innocuous stimulus.
但是，如果我们正确理解环境中的生物体是如何在保护我们的话，也许我们可以用疫苗或利用一些无害的刺激来模仿他们的效果。
We have a moral obligation to protect the environment.
我们有道义责任保护环境。
It can protect the environment.
它可以保护环境。
It would help to protect the environment.
这有助于保护环境。
It is vital that government take the lead to protect environment.
政府带头保护环境至关重要。
We should spare no effort to protect our environment.
我们应该不遗余力保护环境。
It's time to take action to protect the environment.
是时候采取措施来保护环境了。
I think we must do something to protect the environment.
我认为我们必须做些什么来保护环境。
The money from tourism is used to protect the environment.
旅游业赚的钱用来保护环境。
Recycling is one way to protect the environment; reusing is another.
骑自行车是一种保护环境的方法，再利用又是另外一种办法。
In a word, we must try our best to protect our environment.
总之，我们必须尽力保护我们的环境。
Everyone must assume his share of the responsibility to protect the environment.
每个人都必须承担起保护环境的责任。
If we don't act to protect the environment, we will live to regret it.
如果我们现在不采取行动保护环境，我们会遗憾一辈子。
Planting trees in the desert area can keep the sand and protect the environment.
在沙漠地区种树可以保留沙子和保护环境。
They plant trees in the desert area to keep the sand and protect the environment.
他们在沙漠地区种树来固沙和保护环境。
It's time we got rid of these bad habits and take action to protect the environment.
我们是时候改掉这些坏习惯并且行动起来保护环境了。
The Chinese government has declared a war on pollution, showing its determination to protect the environment.
中国政府宣布对污染开战，表明其保护环境的决心。
My position on this problem is that we should do whatever we can to protect the environment.
我对于这个问题的观点是我们应该竭尽所能去保护环境。
In order to protect our environment, immediate actions should be taken, such as stopping cutting down trees.
为了保护环境，我们应立即采取措施，例如停止砍伐树木。
It is imperative that governments around the world enact laws to protect the environment at home and abroad.
世界各国政府必须制定法律来保护国内外的环境。
It is also partly due to both consumers and companies becoming more aware of the need to protect our environment.
部分原因是消费者和企业都越来越意识到保护环境的必要性。
They help protect the environment.
它们有助于保护环境。
What should we do to protect the environment?
我们应该做些什么来保护环境？
It is time to protect the environment of the island.
是时候保护这个岛的环境了。
Would you like to join me to protect the environment?
你愿意和我一起保护环境吗？
They think it is their duty to protect the environment.
他们认为保护环境是他们的责任。
They all help spread the ways to protect the environment.
他们都帮助传播保护环境的方法。
As travelers, we should try our best to protect the environment.
作为旅行者，我们应该尽力保护环境。
Do you want to help the old or protect the environment?
你想帮助老人或者保护环境吗？
You will know how to protect the natural environment.
你就会知道如何保护自然环境。
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