When Meng Haoran left for today's Yangzhou, Li Bai wrote a poem about it, Seeing Meng Haoran off at Yellow Crane Tower.
当孟浩然动身去今天的扬州时,李白写了一首关于扬州的诗,那就是《黄鹤楼送孟浩然之广陵》。
They studied the chemical properties of chrome yellow paint left in historic tubes from this time period.
他们研究了在这个时期留下来的过去的画笔上的铬黄颜料的化学属性。
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