TASK DEFINITION: In this task, you are given a sentence in English and your task is to translate it into Spanish. In translation, keep the numbers and capitalization (capitalize only the first word of each sentence and name).
PROBLEM: Under no circumstances will we concede ground which we have won over the past few months, which we believe to be in the interests of openness and transparency.

SOLUTION: Bajo ninguna circunstancia vamos a ceder el terreno que hemos ganado en los últimos meses y que creemos que lo ha sido en interés de la apertura y la transparencia.

PROBLEM: If this is not to be a mere media event, it will need to be carefully prepared by a joint committee, the composition of which the Portuguese Presidency has already proposed.

SOLUTION: 

PROBLEM: There is no reason why, against this background, we should agree to grant discharge.

SOLUTION:
No existe ningún motivo por el que cual dadas las circunstancias debiéramos aceptar la aprobación de la gestión.