「易學難精」

(pos:語句)
<explanation>
yue:形容技巧好快上手，難在做得出色精湛
eng:describing a skill which can be learnt easily but is hard to excel in
<eg>
yue:我睇人哋做就以為係手板眼見工夫，實情係易學難精。 (ngo5 tai2 jan4 dei6 zou6 zau6 ji5 wai4 hai6 sau2 baan2 ngaan5 gin3 gung1 fu1, sat6 cing4 hai6 ji6 hok6 naan4 zing1.)
eng:I thought it would be quite simple to pick up by the looks of it, but in truth it is hard to excel in.