unit
单元 dānyuán
writing
文字 wénzì
to record, written account
记载 jìzâi
ancient civilization
文明古国 wénmíng gûdài
one of
之一 zhīyī
dynasty
朝代 cháodài
Mesopotamian civilization
两河文明 liânghéwénmíng
Egyptian civilization
极盛 jíshèng
Han dynasty
汉朝 Hàncháo
Qin Shihuang, the first emperor of China
秦始皇 QínShîhuáng
emperor
皇帝 huángdì
pick
选 xuân
world
世界 shìjiè
record, written account
记载 jì zǎi
comprehend, understand
了解 liâo jiê
museum
博物馆 bó wù guân