| 词汇 | outdoor |
| 词根词缀 | 词源： outdoor (adj.) 1748, from out + door. Out-of-door is from c.1800. The adv. outdoors is attested from 1817; as a noun, meaning "open spaces," the word is recorded from 1857. Outdoorsman "one who likes outdoors activities" is from 1958. 词根记忆： a. 室外的,野外的They keep their dog in an outdoor kennel.他们把狗养在户外狗房中. |
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