但是，在混凝土这种较沉重的元素与平淡的清水墙和淬火玻璃栏杆这些较轻的元素之间，仍然存在着一种明显的对照。

Nonetheless, there is still an effective contrast between the heavier elements of concrete and the comparatively lighter elements of prosaic drywall and tempered glass guardrails.

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六个月后，研究人员发现高蛋白组的肌肉功能明显改善——几乎是对照组的两倍。

After six months, researchers found the high protein group had significantly improved their muscle function—almost twice as much as the control group.

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虽然两组在实验室测试中表现基本相同，但是怀孕的女性在场地实验中的表现明显比对照组差。

Although the two groups performed equally well on the lab tests, pregnant women did significantly worse than controls on remembering to follow through on the field task.

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