Indocarbon
靛炭(一种硫化染料)
🗣️ 情景例句
His restaurant is a real moneymaker.
他的餐馆真是很赚钱。
Love is a sweet torment.
爱情是一种甜蜜的折磨。
Many strange new means of transport have been developed in our century,
本世纪已研制出许多新奇的交通工具，