Respuesta :
However is your best choice.
For example:
The atomic bomb was thought to be one of the dangerous weapons in the world, however, once the hydrogen bomb was created, it took the stage as being the most powerful weapon in the world.
hope this helps
For example:
The atomic bomb was thought to be one of the dangerous weapons in the world, however, once the hydrogen bomb was created, it took the stage as being the most powerful weapon in the world.
hope this helps