例句與造句

1. Eminent scientists and professors such as I . Shirokorogov, S . Davidenkov, F . Ilyin, Lev Levin, N . Ushinkiy, k . Malinovskiy and others had a great contribution on development of the institute.
2. It's difficult to find davidenkov in a sentence. 用davidenkov造句挺難的