retener

to keep

to retain

O es que el contenido de la carta permite concluir que el encargo debe de ser cumplido así? Si no le hubiera retenido, hubiera tenido que entregarle la carta a medianoche en la carretera.	If I had not held you back, I would have had... to deliver the letter to you at midnight on the highway.
No te hubiera retenido para entrar en esa estacion de radio.	It wouldn't have stopped you from walking into that radio station.
Nos hubiera retenido durante días.	He would have kept us there for days.
No, nos hubiera retenido allí.	If he'd known anything, he'd have kept us there.
No te hubiera retenido.	I wouldn't have kept you.
Aun más, esperaríamos que la gente que se asentó cerca de babel hubiera retenido o permanecido cercana al codo original.	Moreover, we would expect that the people who settled near Babel would have retained or remained close to the original cubit.
Considerando otro cambio en la Antigüedad, una historiadora se extrañaba que la historia casi no hubiera retenido los nombres de Melania y Piniano.	Speaking of another change in the ancient world, a historian was surprised that the names of Melania and Pinian have been so little remembered.
Luego de todas las pruebas nucleares que han sido llevadas a la práctica en ese lugar principalmente por los franceses, se esperaba que el atolón hubiera retenido el material radioactivo hasta que éste se degradara.	After all the tests done primarily by the French, it was expected that the atoll would hold radioactive material until it degraded.
Se expresó también el parecer que tal vez procediera aplicar una norma de diligencia distinta según que el porteador hubiera retenido la custodia de las mercancías o la hubiera encomendado a un tercero.	The view was also expressed that a different standard of care for the goods might be required depending upon whether the carrier had kept the undeliverable goods in its custody or had given those goods over to the custody of a third party.