| 词汇 | planetarium |
| 词根词缀 | 词源： 1734, "orrery," Mod.L., from L.L. planeta (see planet) + L. -arium "a place for." Mod. sense of "device for projecting the night sky onto the interior of a dome" is attested from 1929. 词根记忆： n. 天文馆(planet行星)[-arium表名词,"地点,场所"] |
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