Satellorb
模拟人造卫星的观察与研究气球
🗣️ 情景例句
I made another lunch date for today
我和别人约好共进午餐，，
Please fill in this application form.
请填这张申请表。
One hour and seventeen minutes passed and we had not even covered half the distance.
1小时17分过去了，走了还不到一半路程。