What is Five Times Harder Than Concrete?
1.
Something very difficult. Based on the rescue from the Beaconsfield gold mine in Australia where the rescuers encountered rock said to be times harder than concrete.
That exam was five times harder than concrete.
See
Random Words:
1.
Originates from a mythical creature that lurks in the dark depths of Mawsley. People say the beasts head is so thin that it once collaps..