Suitable for tunnel, football field, stage, advertising board, gym, stadium, yard, lawn, garden.
适合隧道，橄榄球场，舞台，广告板，健身房，体育场，庭院，草坪，花园。
Check the validity of a board at any stage.
在任何的阶段检查董事会的有效性。
User emotion: "talk songs" So you can board the "world stage.
网友感慨：“口水歌”原来也可以登上“世界舞台”。
User emotion: "talk songs" So you can board the "world stage.
网友感慨：“口水歌”原来也可以登上“世界舞台”。
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