The conference begins this week against a backdrop of unmitigated gloom.

会议这个星期在一片愁云惨雾中开始。

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Using the annual AIPAC conference as a backdrop, this week the Obama administration launched its harshest onslaught against Israel to date.

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The videotapes, which were played at a news conference without sound, showed an extremely gaunt Betancourt apparently chained and in front of a jungle backdrop.

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