车站设置的各类标志产生倾斜、卷翘、破损现象时，如不影响客运，可暂不更换。
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introduce
A. to present two people to each other
B. to develop, to think of, to create
C. to be sure of
commercial
A. an advertisement (usually on TV or radio)
B. main
C. the first thing to do
advertise
A. bigger, broader
B. to call the attention of the public to a certain product or service
C. main
face it
A. an advertising plan
B. to accept something
C. the first thing to do
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