Propynal
丙炔醛
🗣️ 情景例句
Come and see me later and I'll give you some advice.
稍后来见我，我给你一些建议。
If the pills were pleasant, they would not be gilded.
丸药不苦不会加糖衣。
Really? I can't believe it.
真的吗？我不相信。