Now if you think about it, in the age before GPS and radar, that was obviously a really difficult problem.
Si vous y réfléchissez, avant les GPS et les radars, c'était manifestement un vrai problème.
Now if you think about it, in the age before GPS and radar, that was obviously a really difficult problem.
Si vous y réfléchissez, avant les GPS et les radars, c'était manifestement un vrai problème.