王菁说之所以芜湖市如此热衷于使用机器人驾驶的汽车，是因为这是一种更有效率的货运和客运手段。
Mr Jing said the city was keen to use robot vehicles because they were a much more efficient way to transport people and goods.
杨小菁，23岁，毕业于浙江财经大学的企业管理专业。
Yang, 23, is a business management graduate from Zhejiang University of Finance and Economics.
毛萼田菁的茎瘤形成于茎上蛰伏的不定根发生点。 当合适的根瘤菌从不定根发生点裂口入侵后，刺激不定根原基周围的皮层细胞分裂形成含菌组织而发育成茎瘤。
Rhizobium sesbania infected through the apical rupture of the growing site of adventitious root, multiplied in the fissure around the root primordium and stimulated the division of cortex cells.
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