Satellorb
模拟人造卫星的观察与研究气球
🗣️ 情景例句
He's an extremist, and quite fanatical.
他是个极端分子，非常狂热。
Appetite comes with eating.
食欲越吃越旺。
Sally was very excited because she had never travelled on a train before.
萨莉非常激动，因为她从未乘过火车。