/ˈtraɪəl ||; ˈtraɪəl/noun[C,U] 1 the process in a court of law where a judge, etc listens to evidence and decides if sb is guilty of a crime or not 审判；审讯: a fair trial 公平审讯He was on trial for murder. 他因被控谋杀而受审。
2 an act of testing sb/sth 试验；试用: New drugs must go through extensive trials. 新药物必须经过广泛试验。a trial periodof three months 三个月的试用期
trial and error trying different ways of doing sth until you find the best one 反复试验（以找出最佳途径）