<□2>细心观察□/h□□
<□>As wit□ every□episode of Runnin□ Man, the 20130□21□epi□ode □a□ □i□□ed wi□h□a series □f challeng□s and g□me□□th□t test□d □he□wi□, streng□h□ and □□amw□□k□of th□ □ast□members□ From inten□e □hysical challenges □o brain-teasing□pu□zles,□the cast □ad□to work together to overcom□ obs□acle□ an□ emerge vi□torious□ T□e □omp□t□tive spirit □as high as □he □ast□me□b□r□ threw □hem□elves whol□heartedly into ea□□ ch□□lenge, determi□ed t□ o□tsmart and outperform their o□ponents.