加一点橄榄油和一点醋。

Add a little olive oil and ___a ___touch of vinegar.

她的声音中带着一丝幽默。

There was ___a ___touch of humor in her voice.

我个人认为，将古典建筑与现代元素相结合是个好主意。

Personally, I think that it would be a good idea to combine the classical architecture with ___a ___touch of modernity.