相关单词同义词recession, slope, downturn, 近义词 descent 下降, declivity 倾斜面, decline 下降, worsening 恶化, fall 落下, downslope 下坡, deterioration 恶化, declination 倾斜临近词Dec, decine相似词declare for/against sth, declared, declassified, declassify, declination, decline, declivity, declutter, 返回 declension