Langite
蓝铜矾
🗣️ 情景例句
She took a medical course.
她选读医学课程。
How long did the movie last?
电影放了多久了？
Professor Ronald Bracewell, a leading American radio astronomer,argued in Nature that such a superior civilization, on a visit to our own solar system,
假如有如此高级文明生命访问了我们的太阳系，