Indocarbon
靛炭(一种硫化染料)
🗣️ 情景例句
You work hard on all your committees,
而你总是在各种委员会里忙，
Generally speaking, it's cheaper but slower to ship goods by sea than by rail.
总的来说，海运比铁路运输更便宜，但速度慢一些。
How did the game turn out?
球赛结果如何？