I go to school by subway.

Source: Tatoeba

Iron and oxygen are elements.

Source: Tatoeba

I travel on the subway every day.

Source: Tatoeba

Our fence is made of iron.

Source: Tatoeba

Let's take the subway.

Let's take the underground.

Let's go by underground.

Let's go by metro.

Source: Tatoeba

Where do I get the subway?

Source: Tatoeba

My house is only five minutes' walk from the station.

Source: Tatoeba

This group of musicians from the Andes mountain region of Chile and Peru calls itself Wayno. They play the traditional music of the Andes, using age-old instruments like wooden flutes, guitars, and bells. A variety of musicians, dancers and mimes regularly perform in the subways, playing for tips that help them earn a living while practicing their art.

Source: Tatoeba

I suspect Koreans must have trained their wrist strength to use those iron chopsticks so well.

Source: Tatoeba

The atomic number of iron is 26.

Source: Tatoeba

The whole framework was made of iron.

Source: Tatoeba