jiào liàn / xiān / shì fàn / le / yí biàn / bō bǐ yùn dòng / zài / ràng / dà jiā / àn / zì jǐ / de / jié zòu / liàn xí教练先示范了一遍波比运动,再让大家按自己的节奏练习。The coach demonstrated one round of burpees first, then had everyone practice at their own pace.