white stick

noun
🔊/ˌwaɪt ˈstɪk/
🔊/ˌwaɪt ˈstɪk/
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  1. a long, thin white stick carried by blind people to help them walk around without knocking things and to show others that they are blind白色手杖(用以探索障碍物和表示用者为失明人)