「不了了之」

(pos:動詞)
<explanation>
yue:冇咗聲氣；指之前講過嘅野過咗一段時間之後冇做到同埋冇再提起
eng:to not complete or finish something and is not mentioned again
<eg>
yue:佢提過話想寫一本書，但係最後都不了了之。 (keoi5 tai4 gwo3 waa6 soeng2 se2 jat1 bun2 syu1, daan6 hai6 zeoi3 hau6 dou1 bat1 liu5 liu5 zi1.)
eng:He mentioned he wanted to write a book, but ended up not completing it; he never mentioned it since.