The brainchild of the engineer will save us a lot of time and energy.
The brainchild of the engineer will save us a lot of time and energy.
这位工程师的设想将使我们节省许多时间和精力。
The brainchild of the engineer will save us a lot of time and energy.
这位工程师的设想将使我们节省许多时间和精力。