5点钟的火车5 o'clock train 还是用5 o'clock's train?

5点钟的火车5 o'clock train 还是用5 o'clock's train?
5点钟的火车5 o'clock train 还是用5 o'clock's train?

5点钟的火车5 o'clock train 还是用5 o'clock's train?
前者

前者