Satellorb
模拟人造卫星的观察与研究气球
🗣️ 情景例句
No. I sold the house and the furniture,put a few personal things in an old trunk,
不。我把房子和家俱都卖了，剩下一些东西放进一个旧衣箱，
Did you see Mr. Jones yesterday?
你昨天看见琼斯先生了吗？
What's it made of?
它是用什么做的？