My parents brought a few thermal bottles from their hometown as they could not find this kind of product in Western countries. They claim that only the Chinese invented the product. As I talked with some Western friends or colleagues, I was told that the principle of such products came from the inventor (cited literature below).
What do you think?
我的父母從家鄉帶來了一些保溫瓶，因為他們在西方國家找不到這種產品。 他們聲稱只有中國人發明了該產品。 當我與一些西方朋友或同事交談時，我被告知此類產品的原理來自發明人（以下引用）。
你怎麼看？
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