This was different — a disaster unfolding in visceral, wrenching real time, for viewers who were alternately spellbound and tortured by their inability to do anything about it.

而这次海啸与众不同---这次播报的灾难让那些观众撕心裂肺，不断忍受着对电视着迷和面对灾难无能为力的煎熬。

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The results showed that to maintain environment in which high and low DO occur alternately is the key to achieving short-cut nitrification.

试验结果表明，保持高、低溶解氧交替的环境是实现短程硝化的关键；

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Alternately, you can do the same thing via a Bluetooth-ready mobile phone.

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"I do wonder if some of the sentiments alternately expressed about the film might be more appropriately directed at those who instituted and ordered these U.S. policies, as opposed to a motion picture that brings the story to the screen, " she wrote.

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Alternately, contestants may pen their own epic or post a video explaining what they would do to earn the perfect proposal.

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