1
at + the + observatory
表示地点时，介词通常用 at。
We observed the eclipse at the observatory.
我们在天文台观察了日食。
天文台
先理解核心含义，再看它在真实句子里的用法。
天文台
a building designed and equipped to observe astronomical phenomena
We observed the eclipse at the observatory.
我们在天文台观察了日食。
天文台；观测站
A place where stars, planets and other celestial bodies are observed, usually through a telescope; also place for observing meteorological or other natural phenomena.
用于观测天文现象的建筑
a building designed and equipped to observe astronomical phenomena
瞭望台；观察点
A lookout (vantage point with a view of the surrounding area)
可以俯瞰周围环境的建筑
a structure commanding a wide view of its surroundings
Last night, we visited the observatory to see the stars through the telescope.
昨晚我们参观了天文台，通过望远镜观测星星。
The university's observatory is used for both research and public education.
这所大学的天文台既用于研究也用于公众教育。
Many observatories are built on mountaintops to avoid light pollution.
许多天文台建在山顶以避免光污染。
表示地点时，介词通常用 at。
We observed the eclipse at the observatory.
我们在天文台观察了日食。
描述地理位置时常用被动结构。
The observatory is located on a remote mountain.
该天文台坐落在一座偏远的山上。
所有格形式用于表示所属关系。
The observatory's telescope was upgraded last year.
该天文台的望远镜去年进行了升级。
Not this
I visited observatory yesterday.
Use this
I visited an observatory yesterday.
observatory 是可数名词，前面需要冠词或限定词，不能单独使用。应该加上冠词 'an' 表示泛指。
Not this
There are two observatory in the city.
Use this
There are two observatories in the city.
observatory 的复数形式是 observatories，构成方式为以 y 结尾变 y 为 i 再加 es。这里应使用复数形式。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
天文台
Many astronomical observatories are located far from city lights.
许多天文台都建在远离城市灯光的地方。
空间天文台
The space observatory captures images of distant galaxies.
这座空间天文台拍摄到了遥远星系的图像。
天文台圆顶
The observatory dome opens at night to let the telescope view the sky.
天文台的圆顶在夜间打开，让望远镜观测天空。
国家天文台
The national observatory publishes daily reports on solar activity.
国家天文台每天发布太阳活动报告。
射电天文台
The radio observatory listens for signals from space.
射电天文台监听来自太空的信号。
皇家天文台
The Royal Observatory in Greenwich is a popular tourist attraction.
格林尼治皇家天文台是一个热门旅游景点。
Use observatory naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想：observe（观察）＋ -atory（场所）→ 观星的地方，就是天文台。
语域：neutral 常见场景：scientific writing、education、tourism 该词为中性词，多用于科学、教育或旅游等说明性场合；通常指天文台，特定语境中也可指气象台或瞭望台。
Only conservatory rhymes with observatory (both stress -serv-). Laboratory, territory, dormitory, auditory, and lavatory are spelling lookalikes that do not rhyme: their stress falls on the first syllable or another syllable, and the vowel before -tory differs.
Dictionary facts from ECDICT, WIKTIONARY.