air conditioner
n.
from air, n.1 + agent noun from condition; along with air-conditioning, first attested 1909, originally an industrial process; main modern use in residences and office buildings is from 1930s.
| 词汇 | air conditioner |
| 词根词缀 | Online Etymology Dictionary air conditioner n. from air, n.1 + agent noun from condition; along with air-conditioning, first attested 1909, originally an industrial process; main modern use in residences and office buildings is from 1930s. |
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