triathlon /traɪˈæθlən/ noun plural triathlons
plural triathlons
Learner's definition of TRIATHLON
[count] sports
: a long-distance race that has three parts (such as swimming, bicycling, and running)三项全能运动;铁人三项赛 — triathlete
/traɪˈæθˌliːt/ noun, plural triathletes [count]