潜行的；在某物下挖洞或挖通道( undermine的过去式和过去分词 )；侵蚀…的基础；暗中破坏；逐渐削弱；
1. 挖...的下面：undermentioned 记于下面的 | undermined 挖...的下面 | undermined 暗地里破坏
2. 暗地里破坏：undermined 挖...的下面 | undermined 暗地里破坏 | undermining 潜挖
3. 挖...的下面/暗地里破坏：undermine /暗中挖掘/败坏/ | undermined /挖...的下面/暗地里破坏/ | undermining /底部冲刷/底切/潜挖/