YOU SAID:

i courotined your semepjax labato

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私はあなたのsemepjaxラボを担当しました

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I was in charge of your semepjax lab

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私はあなたのsemepjaxラボの責任者でした

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I was the head of your semepjax lab

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私はあなたのsemepjax研究所の所長でした

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I was the director of your semepjax institute

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私はあなたのsemepjax研究所の所長でした

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I was the director of your semepjax institute