Vertaling van "kept their nerve and every penalty went " (Engels → Frans) :

The Portuguese kept their nerve and every penalty went in.
Les Portugais ont gardé leur sang-froid ce qui leur a permis de marquer tous les penaltys.

In fact, during the past fall election every citizen in this country went to a booth where he or she could not be observed and marked their ballot in secrecy, and that ballot was kept in total confidence going into the vote.
En fait, au cours des dernières élections à l'automne, tous les citoyens du pays ont pu aller voter dans un isoloir et le faire en secret, et ce bulletin de vote a été gardé secret.