They train together, and both are on the national team.
The two girls have trained together for more than a year.
They have spent thousands of hours training together in their country's most popular sport.
But what made this work was that all four of them had actually trained together.
The players in each pair were then allowed time to train together.
Two people who had trained together were taking position in case a third party attacked.
They had trained together for a month before their missions and got to know one another.
As a result, groups that trained together performed better in the task.
He came to see me almost every year, and sometimes we trained together.
More and more there are groups of people training together.
