Indocarbon
靛炭(一种硫化染料)
🗣️ 情景例句
Quiet!
安静点儿！
Messengers should neither be headed nor hanged.
两国相争，不斩来使。
The stream wound its way across the field and then flowed right under their tent!
那小溪弯弯曲曲穿过田野，然后正好从他们的帐篷底下流过去。