Indocarbon
靛炭(一种硫化染料)
🗣️ 情景例句
What do you suppose he wanted?
你认为他想要什么？
He who stands alone has no power.
孤掌难鸣。
My teacher's name is Miss Gao. At school I have a friend. His name is Li Lei.
我的老师是高小姐，我在学校里有一个朋友。他叫李磊。