undercurrent

名词 undercurrent:

1. a subdued emotional quality underlying an utterance; implicit meaning
   同义词：undertone
2. a current below the surface of a fluid
   同义词：undertide

1. An underlying or implied tendency or meaning; an undercurrent.
   含意; 暗流; 内在性质隐含的或含蓄的倾向或意义; 潜在势力
2. Therewas an undercurrent of resentment in their acceptance of the plan.
   他们接受该计画时心怀不满。