(大气) air; atmosphere
breathe fresh air
呼吸新鲜空气
admit air
放进空气
There is a nip in the air.
空气寒冷刺骨。
The apple blossoms filled the air with their fragrance.
苹果花使空气充满香味。
(气氛) atmosphere
create a tense atmosphere
制造紧张空气
(气闸) air brake
pneum-; pneumo-; pneumat-; pneumatio-; atm-; atmo-; physo-; aer-; aero-