VERB

降低…的价值（或质量）；使贬值

例句

vt.

降低质量(地位、价格等)

降低(硬币的)价值, 贬值

Verb

1. corrupt morally or by intemperance or sensuality;

2. lower in value by increasing the base-metal content

3. corrupt, debase, or make impure by adding a foreign or inferior substance; often by replacing valuable ingredients with inferior ones;