debase
v[Tn]
1 lower the quality, status or value of (sth) 降低(某物的)质量、 地位或价值
Sport is being debased by commercialism. 体育运动的价值受商业化影响而逐渐下降.
You debase yourself by telling such lies. 你说这些谎话就降低了身分.
2 lower the value of (coins) by using less valuable metal in them 降低(硬币的)价值(减少含贵金属的成色).