tachWiktionary 原文tach1词源 1/tæk/词源说明Clipping of tachometer.释义名词noun1informalClipping of tachometer.同族词派生词 1tach uptach2词源 2/tæt͡ʃ/词源说明Backslang for hat (with /tʃ/ substituted for the /h/).释义名词noun1obsolete, costermongersA hat.tach3词源 3/tæk/释义名词noun1(medicine, colloquial) Tachycardia.同族词派生词 1v-tach