她的声音里带着一丝讽刺。

There was ___a ___hint ___of sarcasm in her voice.

尽管寒意未消，空气中已有一丝春天的气息。

The air carried ___a ___hint ___of spring despite the lingering chill.

这酱汁只需要一点点香草就能变得完美。

This sauce needs just ___a ___hint ___of vanilla to be perfect.