英文關鍵字
accuracy
ancient
archaeologist
archeological
archeology
asia
away
clay
cultural
cut
detail
dig
earth
equipment
excavation
find
ground
hand
heritage
hidden
historic
history
incision
job
layer
moss
old
past
peg
pit
precision
quarry
rake
reindeer
remains
research
sand
science
scientist
shovel
siberia
site
soil
square
stage
summer
taiga
teaching
tool
treasure
tundra
wall
women