undermine

v. /ˌʌndərˈmaɪn/ C1

削弱；逐渐破坏

To make someone or something gradually weaker or less effective.

仙境例句

The Queen's angry looks undermined the Hatter, and his voice grew smaller and smaller.

王后恶狠狠的目光让帽匠越来越没底气，声音也越来越小。