Alkynyl
炔基
🗣️ 情景例句
And it needs your contributions of furniture,
而且也需要你捐献家具，
The scent of roses is wonderful.
玫瑰的芳香非常棒！
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，