加入一点橄榄油和少许醋。

Add a little olive oil and ___a ___touch of vinegar.

她的声音中带有一丝讽刺。

There was ___a ___touch of irony in her voice.

它为我们单调的黑白区域增添了一抹色彩。

It gives ___a ___touch of colour in our dull, black and white area.