At times, sweating and straining in blazing heat to push their truck over huge dunes, they went through rocky valleys and across sandy riverbeds.
كَمَا ٱجْتَازَا بَعْضَ ٱلْأَوْدِيَةِ ٱلصَّخْرِيَّةِ وَسَارَا عَلَى ٱلرِّمَالِ وَسَطَ ٱلْأَنْهَارِ .‏