Learn Spanish (Latin America): Señor, no la toque, porque puede dañarla. - Sir, do not touch it, because you can damage it.

Because we are giving a formal command to a Señor (sir), we use the usted form. For -ar verbs like tocar, the formal command ends in -e. However, if we just wrote "toce", the letter "c" would sound like an "s" in Spanish. We change the "c" to "qu" (toque) to keep the hard "k" sound of the original verb.

Why does the word la come before the verb in no la toque?

In negative commands (when you tell someone not to do something), the object pronoun must always go between the word no and the verb. So, "do not touch it" becomes no la toque.

Why is the second la attached to the end of the verb in dañarla?

Unlike negative commands, when a verb is in its basic, unconjugated form (the infinitive, like dañar), you can attach object pronouns directly to the end of it. You could also put the pronoun before the conjugated verb (porque la puede dañar), but attaching it to the infinitive is very common.

Why is "it" translated as la in this sentence?