- a bystander helped him to his feet un transeúnte or alguien que estaba allí lo ayudó a levantarse they opened fire, killing innocent bystanders abrieron fuego y mataron a varias personas inocentes or a varios transeúntes bystanders looked on in amazement quienes estaban allí or [formal] los circunstantes miraban asombrados
Here is a selection of useful words and phrases you will need in real-life situations while you're visiting Spain and other Spanish-speaking countries...
The Senado is the name of the upper chamber of the Spanish Cortes Generales, and the place where it meets. There are 250 senators, most of whom are elected every four years, at general elections, four from each province. A small number of senators are also elected by the autonomous governments.