The leather upper allows the feet to breathe and stay comfortable.
皮革鞋帮能让双脚透气并保持舒适。
Don't hesitate to haggle: the upper hand currently belongs to buyers.
别犹豫去讨价还价:目前主动权在买家一方。
Sediment has been washed down from the upper lake.
湖泊上游带下许多沉积物.
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