To have a clear-cut stand or unequivocal position on an issue.
本指军旗耀眼，军容整齐。现比喻立场、观点、态度等十分明确。
明·罗贯中《三国演义》第二十五回曹操指山下颜良排的阵势，旗帜鲜明，枪刀森布，严整有威。”
The politician's stance on the issue was clear as day, with banners and flags flying high.
Learn the next connected idiom: 旗帜鲜明 (qí zhì xiān míng) → 明察暗访 (míng chá àn fǎng)
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