英文關鍵字
background
business
businessman
certificate
check
document
exam
hand
human
inspect
isolated
out
overlook
postage
proof
render
rubber
sign
stamp
stamping
symbol
take
test
tested
text
trial
verify
white
英文關鍵字
background
business
businessman
certificate
check
document
exam
hand
human
inspect
isolated
out
overlook
postage
proof
render
rubber
sign
stamp
stamping
symbol
take
test
tested
text
trial
verify
white