Beyond convenience and economy, the retro fitness kick may also - like the revival of Pop Rocks and tie-dye - appeal to a taste for boomer nostalgia.
除了方便和划算，踢腿健身同样也-就像摇滚复兴和染色领带-迎合了恋旧者的品味。
2
They kick a continuous rain of snow and rocks down the route.
他们踢落的积雪和石块就像骤雨落在他们身后的线路上。
3
Going downhill at speed, it's easy for your tires to kick up rocks or dirt that, if they get in your eyes, will blind you and cause you to run off the trail and into a tree, as often as not.