trail ultraOur editors are putting together more complete content — check back in about 20 minutestrail ultra名詞 · 1動詞 · 1trail ultra — noun名詞1. a path through the countryside, often for walking1.名詞釋義a path through the countryside, often for walking例句We followed a trail through the forest.trail ultra — verb動詞1 解釋1. to follow someone or something closely1.動詞釋義to follow someone or something closely例句The police trailed the suspect for hours.