Phenolphthalin
酚酞啉, 還原酚酞
??? 情景例句
Hello, nice to meet you. By the way, nice shoes you have.
你好，很高興見到你。 順便提一下， 你的鞋子很漂亮。
No,I'm not married.I'm still single.
沒有,我沒結婚，仍然是單身.
That's right. On Friday. I'm going there for the holiday with my parents.
是的，星期五（動身）。我打算到那兒和我的父母一起度假。