世界卫生组织说，由于猪流感病毒已经扩散到了数个地区，国际旅游禁令不会产生很大效果。

The U.N. agency said that, because the swine flu virus has already spread to several locations, international travel bans would not be very effective.

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为了消除这种效果，可以在闪光灯灯头上加一片不透明材料或黑色塑料泡沫板做的遮光片，以阻挡扩散的光线照射到被摄体。

To eliminate this effect, you can place a small piece of opaque material or black foam just long enough to block the direct part of the light from hitting your subject.

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但批评者认为，GNEP计划是一场未经科学证明的代价高昂的豪赌，它将损害核能事业，而对打击核扩散效果甚微。

But critics call GNEP a costly gamble on unproven science that will harm the cause of nuclear energy and do little to combat proliferation.

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