英语_by

Six medical scientists were honred in 1973 by the Gairder Foundation of Toronto Canada，for outstanding research.  

He was praised by the teacher.  他受到了老师的表扬。

The book was written by Lu Xun.   这本书是鲁迅写的。 

by - "被；由"  用于被动语态的句子中，表示动作的执行者。