the mixture of gases around the earth

These factories are releasing toxic gases into the atmosphere. 这些工厂向大气中排放有毒气体。

a mixture of gases that surrounds any planet

the search for planets with a breathable atmosphere 寻找有可呼吸气体的星球

the air that you breathe in a place

The atmosphere in the room was so stuffy I could hardly breathe. 房间里空气污浊，我都快喘不过气来了。

A few plants in an office will improve the atmosphere. 在办公室里摆些植物可以改善空气。

the character, feeling, or mood of a place or situation

There's a very relaxed atmosphere in our office. 我们办公室的气氛非常轻松。

There has been an atmosphere of gloom in the factory since it was announced that it would be closing. 自从宣布工厂要关闭的消息后，厂子就笼罩在一片沮丧的气氛中。

a feeling that a place has of being pleasant and interesting or exciting

You want a restaurant that serves good food but has a little atmosphere too. 谁都想去家饭菜可口又有点情调的饭店吃饭。

He put on some soft music and turned the lights down in order to give the room a little more atmosphere. 为了使房间更富情调，他放起了轻柔的音乐，调暗了灯光。