「辭不達意 / 詞不達意」

(pos:語句)
<explanation>
yue:講嘅説話言詞，傳達唔到真正嘅意思同心情
eng:to lack the ability to convey one's intended meaning and emotions with one's words
<eg>
yue:佢中文唔好，講嘢成日詞不達意。 (keoi5 zung1 man2 m4 hou2, gong2 je5 seng4 jat6 ci4 bat1 daat6 ji3.)
eng:He's not good at Chinese and often fails to express himself correctly.