n.低音；淺色；底色；潛在的含義

There were undertones of relief as the visitors left. 客人走后大家都暗暗松了口氣。

He simply looked at the sea dully and swore in an undertone. 他只是呆呆地注視著海面低聲詛咒著。

Warm skin types have a yellow undertone in their skin. 暖色的膚色有黃色的基調(diào)。

The discharge printing process using reactive dyes to dye the ground shade and to discharge the undertone was discussed. 探討了棉織物以活性染料染底色,仍以活性染料印花入色的拔染印花工藝。

There is an undertone of regret in what he said. 他的話中帶有悔意。

There was an undertone of bitterness in his words. 他話中有刺。