a building in which moving images of the sky at night are shown using a special machine
发音
例句
1. The planetarium staff also prepared talks for radio broadcast. 天文馆的工作人员还要准备讲稿给电台广播。 2. It landed in a shallow basin fifty yards from the planetarium. 它降落在离天文馆五十码处的一个浅盆地中。