A common defense of sport hunting is that it serves a vital wildlife-management function, without which countless animals would succumb to starvation and disease.

运动狩猎的一个常见辩护是，它提供了至关重要的野生动物管理功能，没有它，无数的动物将会死于饥饿和疾病。

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Coercive defense is one type of defense system and it is the essential realization form of defense system function.

强制辩护是辩护制度的一种，是辩护制度功能的重要实现形式。

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NK cells are the body's first line of defense against viral pathogens and tumor cells, which means a decrease in their function can result in increased susceptibility to cancer and certain viruses.

自然杀伤细胞是身体对抗病毒引起的病原体和癌细胞的第一道防线，这意味着降低自然杀伤细胞的功效将导致对癌症和某些病毒的敏感性增加。

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The focus of regulation must be assault weapons, and their accessories which have no function in sport or self-defense in the hands of the public.

FORBES: Gun Control--The Only Way To Disarm Is To Disarm

New START skeptics argued that the Commission could in fact function as a significant constraint on missile defense, in ways that undermine the role of the Senate in the formulation of U.S. foreign policy.

CENTERFORSECURITYPOLICY: Center for Security Policy | Mapping a National Security Failure: Ratification of the New START Treaty | Page: 11

True enough, but if so, and to be consistent, they must seek cuts in a defense budget that similarly fosters dependency among higher earners whose income is almost solely a function of a massive budget funded by the rest of us.

FORBES: Republicans Don't Need A Reset, They Just Need To Act Like Republicans Again