Work upon
volume
British pronunciation/wˈɜːk əpˌɒn/
American pronunciation/wˈɜːk əpˌɑːn/

"work upon"的定义和意义

to work upon
[phrase form: work]
01

致力于, 专注于

to dedicate time and effort to produce or fix something
to work upon definition and meaning

work upon

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