Translation of "Sostengo" in English

Sostengo a dos niños.

I have two children to support.

- Yo lo apoyo.
- Yo lo sostengo.

I support him.

Me hago fuerte, sostengo lo que pienso

I'm manning up, I'm a hold my ground

Si mejoraron con el paso del tiempo, yo sostengo que eso es progreso.

If they have improved over time, that, I submit, is progress.