去年八月以来就实施了严格的森林保护手段，禁止了所有商业伐木行为。

It has also used strict forest protection methods and banned all commercial logging since last August.

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你需要保护手段？养只狗吧！

You want protection? Get a dog.

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由于这三种保护手段各有利弊，所以应该采取积极的措施来减少弊端，更好地保护著作权人的利益。

In order to protect the author's right well we should take positive measures to overcome the shortcoming in the three means.

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For example, how cancer diagnosis has improved, what are some of the causes of cancer in the environment around us and how can we protect ourselves from it, and we'll talk about treatments for it as well.

例如癌症的诊断手段是如何进步的,我们周围环境中有哪些致癌因素,以及我们如何保护自己免受其害,我们也会讨论到癌症的治疗手段

耶鲁公开课 - 生物医学工程探索课程节选