Wiktionary英语词典
收录 1,329,381 个英语单词，来自Wiktionary的英文释义、IPA发音、词源、词形变化和词汇关系数据
O开头单词
(共36,133个)
In an observational way.
Of a nuclide (isotope): theoretically capable of radioactive decay (on the grounds that it would be ...
observations
英 /ˌɒbzəˈveɪʃənz/
plural of observation
observant; watchful
plural of observative
An observer.
plural of observatorium
Relating to an observatory.
plural of observatory
An observatory.
plural of observator
observatory
英 /əbˈzɜːvət(ə)ɹi/
A place where stars, planets and other celestial bodies are observed, usually through a telescope; a...
Obsolete form of observance.
plural of observaunce
observe
英 /əbˈzɜːv/|/ɒbˈzɜːv/
To notice or view, especially carefully or with attention to detail.
observed
英 /əbˈzɜːvd/
simple past and past participle of observe
In a way that is observed.
second-person singular simple past indicative of observe
One who is observed.
plural of observee