据4s店的机修技师说，在他们所经手修理的轿车中，车辆因发动机维护不良形成的毛病占总毛病的50%。

According to the 4s shop mechanic said they had worked in the car repair, engine maintenance vehicles because of bad form total with 50%.

youdao

据4s店的机修技师说，在他们所经手修理的轿车中，车辆因发动机维护不良形成的毛病占总毛病的50%。

According to the 4s shop mechanic said they had worked in the car repair, engine maintenance vehicles because of bad form total with 50%.

youdao