Indocarbon
靛炭(一种硫化染料)
🗣️ 情景例句
Britain is behind Japan in developing modern technology.
在发展现在技术方面英国落后于日本。
Who is he?
他是谁？
The driver gave him a few biscuits and a cup of coffee and left him just outside the city.
司机给了他几块饼干和一杯咖啡，就把他丢在了城外。