What does "I met a girl on the train." mean in English for Spanish?

In English for Spanish, "I met a girl on the train." means:

Conocí a una chica en el tren.

Listen to "I met a girl on the train.": (If you have an HTML5 enabled browser, you can listen to the native audio below)

This is a phrase that is used in the GamesForLanguage English for Spanish Language Game in the following scenes:

• English for Spanish 4, Level 1, Scene 4