doubling course造句

The wall consists of a double course of stones with an inner core of sand and rubble.
After two rounds of elimination heats, the 6, 9 or 12 fastest teams enter two semifinal rounds, and the three fastest teams in the semifinals go to the final, which is run over the double course.
This leads to very close harmonic voice leading, which may also be the reason for the frequent unison double stops in lyra viol music, perhaps also intended to imitate the double course of strings on the lute.
Cammermeyer hoped to become a doctor, but was put on academic probation after her first semester at the University of Maryland, where she took a double course load, spent a great deal of time in pubs and grew increasingly depressed.
Impressed by his seriousness, Grossier said he broke his own policy and let Netanyahu take a double course load that first semester and for the rest of the 2 1 / 2 years it took him to earn his bachelor's degree in architecture.
It's difficult to find doubling course in a sentence. 用doubling course造句挺难的