Black bear cubs use trees for defense, whereas brown bears and polar bears, which regularly inhabit treeless environments, rely on aggression to protect their cubs.

黑熊幼崽用树来防御，而经常生活在没有树的环境中的棕熊和北极熊则依靠攻击性来保护它们的幼崽。

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The JATAS program will provide the next generation threat warning system to protect U.S.Navy and Marine Corps assault aircraft for increased survivability in hostile environments.

该JATAS项目将提供下一代威胁预警系统，以保护美国海军和海军陆战队攻击机，增加在恶劣环境的生存能力。

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The JATAS program will provide the next generation threat warning system to protect U.S. Navy and Marine Corps assault aircraft for increased survivability in hostile environments.

该JATAS项目将提供下一代威胁预警系统，以保护美国海军和海军陆战队攻击机，增加在恶劣环境的生存能力。

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But I do know with these securities, I'm going to get a real return over the life of this holding that is going to protect me in all environments.

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The widespread nature of the risk is illustrated by the fact that just under half the respondents said they use less-stringent methods to protect data in development and testing environments.

FORBES: Magazine Article

Those professional obligations require all teachers to take reasonable efforts to protect their students and colleagues from harassment or discrimination and any oppressive or intimidating environments.

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