I guard against being over protective so that he learns to fight his own battles.

她说，“我会防止过分保护，这样可以让他学会了自己解决冲突。

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In order to guard against damage during trauma, the brain releases protective chemicals that also happen to trigger intense hallucinations.

为了在心灵受创伤之前避免受到伤害，大脑会释放出防护性的化学信号，同时也会引发强烈的幻觉。

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VENT GUARD? Is a protective enclosure designed exclusively for the air release valve found in many public water supply systems.

通风口的保护外壳设计，专用于许多公用水供应系统中的空气释放阀。

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Many leagues now recommend or require that pitchers wear a heart guard, a protective chest pad.

WSJ: Little League Bans Composite Bats

There's even a protective layer of splash-guard coating.

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It will require evidence of what the organisation knew about the risk posed by Savile, what complaints it received and what protective measures it put into operation to guard against that risk.

BBC: UK