b interponerse vpr
[persona] to intervene
[obstáculo] to stand in the way
no pensamos interponernos we do not intend to intervene
se interpuso en su camino he blocked his path, he stood in his way
se interpuso entre los dos para que no riñeran he came between the two of them to stop them fighting
grandes obstáculos se interponen en la solución del conflicto there are great obstacles standing in the way of a solution to the conflict