This "arrhythmia" raises the risk that clots may form in the heart and possibly travel to the brain, causing a stroke.

这种心律失常加大了心脏内形成血栓风险，并有可能移至大脑引起中风。

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Stroke Adjustment: Built in rotary hard stops, protects rotary platform from over travel.

行程调整：在旋转硬站为基础，保障了对旅行旋转平台。

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Meanwhile, the hand should travel directly under the centerline of the body and accelerate throughout the stroke.

同时，手在划水的过程中应该沿着身体的中线运动，并且处于持续加速状态。

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Deputy national security adviser Elliot Abrams and Assistant Secretary of State David Welch, who postponed a visit to the region after Sharon's stroke, will travel there this week.

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Clots can form in the pouch and travel to the brain, causing a stroke.

NPR: Heart Repair Breakthroughs Replace Surgeon's Knife