1N-COUNT (情感的)潜流,暗流 If there is an undercurrent of a feeling, you are hardly aware of the feeling, but it influences the way you think or behave. (情感的)潜流,暗流
...a deep undercurrent of racism in British society. [+ of]
2N-COUNT (水流的)潜流;暗流 An undercurrent is a strong current of water that is moving below the surface current and in a different direction to it. (水流的)潜流;暗流
Colin tried to swim after him but the strong undercurrent swept them apart.