檢視有当的原始碼

'''有当'''读音是yǒu dāng，汉语词语，犹言有[[定数]]。<ref>[https://www.zhihu.com/question/320187176 口字旁的当怎么打不出来了?]知乎</ref>
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|<center><img src=" https://i01piccdn.sogoucdn.com/0d1c302b0baffcf7   " width="180"></center><small>[]</small> 
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