英文關鍵字
accuracy
ancient
archaeologist
archeology
arrowhead
basket
brush
clay
cleaning
corrosion
deepening
deformed
dig
discovery
dust
earth
excavation
field
find
fossil
ground
hands
heritage
hidden
history
hunting
iron
job
many
medieval
metal
muddy
process
remains
research
rusty
science
scientist
soil
spear
stage
studying
summer
table
tool
weapons
woman
zeal