The world's macroeconomic trend is influenced by many uncertain factors, so no one can predict its future direction.

世界宏观经济走势受许多不确定因素的制约，谁也无法预测它的走向。

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Astronomers are using the current close encounter as an opportunity to study the asteroid, so they can improve their calculations to predict its future path.

BBC: Apophis asteroid: Large space rock flies past Earth

Her insurance company, meanwhile, will try to predict how many future medical claims she and its other patients will make.

FORBES: Here's How Stripping Down Health Care Reform Benefits to the Bare Bones Will Backfire and Drive Up Costs

Some give it a good chance of grabbing 100 seats, while others point to its mosaic structure of disparate liberal elements and predict a split in the future.

CNN: Rise of a New Liberal Bloc