Yog tias koj xav tau lwm yam tshwj xeeb, thov muab daim ntawv teev npe thiab saib pem hauv ntej. Yog tias tsis muaj daim ntawv teev npe, tsuas yog qhia cov neeg siv khoom ntawm txoj kab uas hla, grooves thiab hlua.