雜誌中有一段
A decade ago, the Schuylkill Mall and its 90 stores,
restaurants and knickknack kiosks was a nexus of daily
life in this part of Pennsylvania coal country, where
teenagers met to flirt as warm-up-suited seniors walked
laps around them.
請問文中 warm-up-suited seniors walked laps around them
是什麼意思呢?
全文
http://time.com/4865957/death-and-life-shopping-mall/