Niels Bohr
Nguồn tin: tieng anh vui
"An expert is a person who has made all the mistakes that can be made in a very narrow field."
Đăng ký: Tieng Anh Vui
"An expert is a person who has made all the mistakes that can be made in a very narrow field."
Đăng ký: Tieng Anh Vui
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