现在的情况很令人沮丧，因为我们停滞在一个很糟糕的空气质量中。
It is frustrating now because we are stagnating at a terrible air quality level.
可以也几个星期中生存贫氧停滞池塘和管呼吸空气及其功能的肺的表面。
Can also survive for weeks in oxygen-poor stagnant ponds and canals by breathing air at the surface with its functional lung.
交通停滞、空气污染、马路拥挤、无休无止的灰色人行道。是不是听着耳熟?。
Stand-still traffic, air pollution, crowded streets, endless gray sidewalks. Sound familiar?
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