英文關鍵字
25-30
approval
approve
background
besser
blocks
breeze
bricklayer
bricklaying
bricks
caucasian
cement
cinder
clinker
cmu
communication
concrete
confirmation
construction
endorsement
female
foundation
friendly
gesticulate
gesticulating
gesture
go-ahead
green
hard
hat
isolated
light
mason
masonry
mortar
non-verbal
okay
permission
positive
recommendation
safety
salute
stonemason
stonemasonry
thumb
trowel
white
worker
years
yellow