这时候葡萄藤下的空气不流通，像桑拿房一样，唯有葡萄叶下能提供一点阴凉。
The air underneath them is stagnant, as in a sauna, but their foliage is the only available shade.
如果机舱内空气长时间不流通，可以向机组人员提出你的顾虑。
Raise concerns with the crew if air circulation is shut off for an extended period.
周围的空气阴湿寒冷，也不流通。
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