Anthraciny
蒽化作用
🗣️ 情景例句
After I finish my homeword, I usually watch TV for half an hour or so.
我做完作业后，通常看半个小时的电视。
To mention the wolf's name is to see the same.
说到曹操，曹操就到。
Neither of us realized that night that these carvings and paintings dated back 15,000 years,
我们没有意识到这些刻画追溯到15，000年前，