he is not up to his work - он не справляется со своей работой
1G. P. Zeliony — [Г. П. Зеленый] (c. 188? – c. 195?) was a Russian physiologist who contributed to the understanding of conditional and unconditional reflexes. He was one of I. P. Pavlov s first students. [ Первый заведующий ученик И.П. Павлова проф. Г.П.Зеленый… …
