(pos:動詞) <explanation> yue:#開口 發出聲音 eng:to start talking or singing <eg> yue:佢一開聲我就知道係佢啦。 (keoi5 jat1 hoi1 seng1 ngo5 zau6 zi1 dou3 hai6 keoi5 laa1.) eng:I know it's him once he starts talking. ---- <explanation> yue:引申指發表意見、指出問題、表示支持 eng:to speak up; to voice out (to express concern or to support someone, etc.) <eg> yue:#開到聲 (hoi1 dou3 seng1) eng:to say something explicitly <eg> yue:佢終於開聲支持自己老婆。 (keoi5 zung1 jyu1 hoi1 seng1 zi1 ci4 zi6 gei2 lou5 po4.) eng:Finally, he speaks up for his wife. ---- <explanation> yue:開着電子#裝置 嘅#響聲 或者#音量 eng:to turn on the ringtone or volume of a device <eg> yue:有咩就打字啦，返工唔可以開聲。 (jau5 me1 zau6 daa2 zi6 laa1, faan1 gung1 m4 ho2 ji5 hoi1 seng1.) eng:Type it out if you have anything to say. I can't turn on the volume during working hours. <eg> yue:佢電話唔開聲，成日揾佢唔到。 (keoi5 din6 waa2 m4 hoi1 seng1, seng4 jat6 wan2 keoi5 m4 dou2.) eng:His phone is always on silent mode and therefore he is always unreachable. ---- <explanation> yue:正式唱歌之前嘅熱身，唱一啲簡單嘅音或者做一啲簡單嘅練習，用嚟熟習唱歌運聲 eng:vocal warm-up, an pre-performance exercise to fine-tune one's vocal muscles <eg> yue:如果唔開聲就上台，會唱得好難聽。 (jyu4 gwo2 m4 hoi1 seng1 zau6 soeng5 toi4, wui5 coeng3 dak1 hou2 naan4 teng1.) eng:One's performance would be disastrous if he skipped his vocal warm-up.