Definition (平面)
Located on a level surface, rather than on a slope or hill.
在平地上
Most of this bike path is on the flat, making for an easy ride.
这条自行车道的大部分路段都在平地上，骑行起来很轻松。
The first few kilometers of the race are on the flat before it goes into the hills.
比赛的前几公里是在平地上，之后才进入山区。
We practiced running on the flat in preparation for the upcoming cross-country race.
我们在平地上练习跑步，为即将到来的越野赛做准备。