「頭頭是道」

(pos:形容詞)
<explanation>
yue:講解得好清晰、有條理
eng:spoken in a clear and orderly manner
<eg>
yue:群眾覺得佢講嘢頭頭是道，但其實只係佢騙術高明。 (kwan4 zung3 gok3 dak1 keoi5 gong2 je5 tau4 tau4 si6 dou6, daan6 kei4 sat6 zi2 hai6 keoi5 pin3 seot6 gou1 ming4.)
eng:People think he speaks in a clear and orderly manner, but in fact it is only that he is a great swindler.