Relacionar Columnas Talking About FunctionsVersión en línea Matching por Logos Sprachinstitut 1 The vehicle is powered by the engine. 2 The function of the switch is to turn the machine on and off. 3 The purpose of the wheel is to steer the truck. 4 The purpose of the backup file is to keep our data safe. 5 The shelf is bolted to the wall with screws. 6 The airflow is regulated by the valve. 7 The bridge is supported by steel pylons. Steel pylons support the bridge. The switch turns the machine on and off. The engine powers the vehicle. The valve regulates the airflow. The wheel steers the truck. The backup file keeps our data safe. Screws bolt the shelf to the wall.
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