transportation engineer

例句：

1. 1. He is a transportation engineer with over 20 years of experience in the field.
   他是一位拥有20多年在这个行业经验的运输工程师。
2. 2. The transportation engineer was responsible for designing and implementing the new transportation system.
   这位运输工程师负责设计和实施新的运输系统。
3. 3. The transportation engineer was able to optimize the traffic flow and reduce congestion on the highway.
   这位运输工程师能够优化交通流，减少高速公路上的拥堵。