олимпиада эрудит
Олимпиада эрудит: соревнования для умных.
ЧитатьTRIAL noun
[ C,U ] uk/traɪəl/ us trial noun [C, U](TEST)
a test of something new to find out if it is safe, works correctly, etc
испытание
The drug is currently undergoing clinical trial s. trial and error
a way of learning the best way to do something by trying different methods
метод проб и ошибок
There aren't any instructions with it - it's just a matter of trial and error.