紫锥菊的疗效参差不齐，这种植物长久以来被人认为有助于缩短感冒持续时间。

Evidence has been mixed on echinacea, a purple flowering plant long thought to help shorten the duration of colds.

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尽管以前的研究已指出手术相关神经功能改变的危险因素，但这些研究时间跨度大且患者群构成参差不一。

While previous studies have demonstrated risk factors for neurologic changes in the setting of spinal surgery, these involved long time spans and heterogeneous patient populations.

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定制的砖块以自然的方式参差不齐地组合在立面上，使得在一天中的不同时间段，形成出了不同阴影线条，以此打破墙面的单调性。

Custom made bricks are designed to be placed uneven on facade in a natural pattern, giving different linear shades at different times of the day, breaking the monotony.

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