動詞 double-tongue:

1. play fast notes on a wind instrument
   同義詞：double tongue, triple-tongue

形容詞 double-tongued:

1. marked by deliberate deceptiveness especially by pretending one set of feelings and acting under the influence of another- W.M.Thackeray
   同義詞：ambidextrous, deceitful, double-dealing, duplicitous, Janus-faced, two-faced, double-faced