相关单词同义词setback, declivity, declivous, 近义词 lower 低的, cheapen 降低, descent 下降, degrade 降格, alloy 合金, demote 降级, reduce 减少, relegate 使降级反义词upgrade, 升级临近词down, downtum相似词downcycle, Downeaster, downer, downfall, downhearted, downhill, downhill skiing, Downing Street, 返回 downgrade