Nonvisibility
不可见性
🗣️ 情景例句
Why don't we do it again?
我们再来一次怎么样？
Who is the lady in white?
穿白衣服的那位小姐是谁？
easily obtainable from the lunar rocks in the form of liquid oxygen.
从月球上的岩石中很容易提炼出液态氧，