In the short term, from the screw machinery for considerable energy saving appears more difficult.

要在短期内，从螺杆机械上获取可观的节能则显得更为艰巨。

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But the task will be much more difficult than it appears.

但这个任务远比看起来难的多。

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Mr Blair, a PhD candidate, says that the older mind appears to have trouble suppressing irrelevant information. This makes it more difficult to concentrate on the here and now.

准博士默文·布莱尔说：“我们发现老年人更难抑制无关信息。这使集中注意力变得更加困难。”

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The ability of banks to borrow at long-term maturities from investors appears to be getting more difficult.

WSJ: New Tactics Boost Bank Profits