Chromotrope
[建] 铬变素, 酸性一号铬变棕
🗣️ 情景例句
I've been thinking.
我一直在考虑。
His foot is wounded, Does it hurt?
他的脚受伤了，疼不疼？
She runs everyday in order to lose weight.
她每天都跑步是为了减肥。