英语语法分析

Fartlek is a Swedish term that means' speed play 'or playing with speed.

“法特莱克”是瑞典语“速度游戏”的意思。

To maintain your speed during the cold-weather months, do one fartlek workout every week.

为了在寒冷的季节保持你的速度，你需要每周进行一次法特莱克跑。

Speed play (aka Fartlek) — Fartlek, commonly known in the U.S. as interval training, is the Swedish word for “speed play.”

法特莱克训练法——也就是在美国众所周知的变速跑。