passenger train composition

例句：

1. 1. The new passenger trainservice is expected to increase travel efficiency.
   新的旅客列车服务预计将提高旅行效率。
2. 2. Thecomposition of the train's crew wascarefully planned to ensure safety.
   列车乘务人员的组成经过精心规划，以确保安全。
3. 3. The composition ofthe train's interior designhas been updated to better meet passengers' needs.
   列车内部设计的组合已经更新，以更好地满足乘客的需求。