jiù shí qì shí dài
Paleolithic Era
旧
jiù
old
石
shí
abbr. for Shijiazhuang 石家莊|石家庄[Shi2 jia1 zhuang1], the capital of Hebei
器
qì
device
时
o'clock
代
dài
to be a substitute for; to act on behalf of; to replace; to substitute
