to work upon
[phrase form: work]
01
致力于, 投入时间和精力于
to dedicate time and effort to produce or fix something
例子
The mechanic worked upon fixing the car on the repair stand.
机械师致力于在修理台上修理汽车。
Work upon preparing the garden bed for planting in the soil.
致力于准备花园床以便在土壤中种植。
