P-xylenolsulfonephthalein
[化] 二甲磺酞
🗣️ 情景例句
Small world. I'm from Titusville, too.
世界真小。我也是从Titusville来的。
A little fire is quickly trodden out.
小洞易补。
Two of his assistants had been working busily since eight o'clock and had only just finished.
他手下两名店员从早上8点就开始忙碌，这时刚刚布置完毕。