Takahiro4

hello wikimedian, I am science and mathematical unsolved problem nerd.

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Wikipedia:Babel

en-3This user can contribute with an advanced level of English.

ja-5この利用者は専門家並みに日本語を使いこなせます。

zh-2該用戶能以一般的中文進行交流。
该用户能以一般的中文进行交流。

de-1Dieser Benutzer hat grundlegende Deutschkenntnisse.

es-1Este usuario puede contribuir con un nivel básico de español.

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