小鸟、人群、蓝天、漂浮的白云、新鲜空气，还有落在你脸颊上的阳光。

The birds, the people, the blueness of the sky, the clouds floating along, the smell of the fresh air, the warmth of the sun on your cheeks.

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你的鼻窦——在你脸颊之间，前额与眼眉后面，鼻梁两边，鼻子后面的气腔——很容易就会堵塞。

Your sinuses — air-filled pockets found within your cheeks, behind your forehead and eyebrows, on either side of the bridge of your nose, and behind your nose — can get clogged easily.

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