Ketonization
酮基化作用
🗣️ 情景例句
What language do they speak in Japan?
在日本他们说什么语言？
You're getting on my nerves!
你很烦耶！
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，