save the workout for the gym.是什么意思

还是去健身房报到吧
参考
事实上，什么东西都可以在网上买到，只要适当小心，网上购物相对于辛苦地挤商店买东西是一个不错的选择。所以安坐下来，登录网站，节约出时间上健身馆锻炼身体吧！

Practically anything can be bought on-line and, provided the appropriate caution is exercised, Internet shopping can be a rewarding alternative to trudging through the stores. So sit back, log on, and save the workout for the gym.

几乎所有商品都能在线购得，只要处理得当，网上购物会是除了在商家间奔波之外另一项令人满意的选择。所以，安靠椅背，开机上线吧！要锻链身体，还是去健身房报到吧