mag·num o·pus
noun/ˌmæɡnəm ˈəʊpəs/
/ˌmæɡnəm ˈəʊpəs/
[singular] (from Latin)- a large and important work of art, literature or music, especially one that people think is the best work ever produced by that artist, writer, etc.
代表作；杰作 - The author produced his magnum opus just before he died.
作者在去世前写下了他的巨著。
Word Originlate 18th cent.: from Latin, ‘great work’. - The author produced his magnum opus just before he died.