un·der·cur·rent /ˈʌndəˌkʌrənt $ -dərˌkɜːr-/ noun [countableC] 1 FEEL HAPPY/FRIGHTENED/BORED ETCa feeling, especially of anger or dissatisfaction, that people do not express openly 暗流,潜伏的情绪〔尤指愤怒或不满〕undercurrent of He sensed an undercurrent of resentment among the crowd. 他觉察出人群中有一股潜在的不满情绪。
undercurrent of• There's a strong undercurrent of racism in this town.