gōng chéng shī / xū yào / yòng / zhuān yè / ruǎn jiàn / huì tú / ， / cái néng / wán chéng / qiáo liáng / de / shè jì / fāng àn / 。

工程师需要用专业软件绘图，才能完成桥梁的设计方案。

Engineers need to use professional software to draw charts in order to complete the bridge design plan.