Aeriscope
超光电摄象管, 爱利管
🗣️ 情景例句
In fact, I love what I do ...
事实上 我热爱我的工作……
Why does only one sock get lost at a time?
为什么袜子只丢了一只呢？
When we talk about the universe, we mean the earth, the sun, the moon and the stars, and the space between them.
人们谈论宇宙时，是指地球、太阳、月亮、星星以及它们存在的空间。