The wooden boards act as another visually blocking material between the recreational space and the rest of the office areas.

木板作为休闲空间和其它办公空间之间的另一种视觉隔断材料。

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Material rewards will not necessarily lead to a drop in moral standards as long as there is a whole system blocking those who attempt to take advantage.

只要有一整套机制来阻止那些企图占便宜的人，物质奖励就不会必然导致道德标准的沦丧。

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A second line of defense is a risk mitigation strategy, in this case blocking accumulation of the new material in the grain.

第二道防线是风险减轻策略，在这种情况下是阻止作物中新材料的积累。

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Parents shouldn't be obliged to act as the sole filters for the torrent of material, as they are today, blocking channels and password-protecting against the ever-shifting programming.

WSJ: Campbell Brown: The President Gives Hollywood a Pass on Violence