They look like low-lying, white or grey buttes, long, narrow hills with flat tops, barely a meter high.
它们看起来就像低洼的白色或灰色的孤山，又长又窄，山顶平坦，只有一米高的山。
2
If it shows the entire sole of our foot with little to no curve on the inside, it means you have low arches or flat feet and tend toward over-pronation (your feet roll inward).
If your foot is at a right Angle to your outstretched leg and does not dangle, you have a low ankle-joint axis and will be more comfortable in flat shoes than in high heels.