Moonscope
人造地球卫星望远镜
🗣️ 情景例句
How can I reward your help?
我怎样才能报答你的帮助呢？
Which one is better?
哪一个是较好的？
and in the course of a few hundred miles reaches the true ocean floor at 2,500-3,500 fathoms.
一直延伸到几百英里远深达2，500至3，500的地方，