Coelostat
n. [天]定天镜( 观测或拍摄天体时镜面与地轴一同转动可使图像固定不动)
🗣️ 情景例句
Aren't you surprised
不觉得很惊讶吗？
All right. I will send the information on a piecemeal basis as we acquire it.
好。我们收齐之后会立即寄给你。
What are you doing?
你在干什么？