「不禁」

(pos:副詞)
<explanation>
yue:忍唔住
eng:cannot refrain from, wanted not to but did so
<eg>
yue:佢哋聽到個消息之後都不禁喊起上嚟。 (keoi5 dei6 teng1 dou2 go3 siu1 sik1 zi1 hau6 dou1 bat1 gam3 haam3 hei2 soeng5 lai4.)
eng:They couldn't help crying after they heard the news.