(pos:副詞)(sim:預先)<explanation>yue:喺某件事發生之前eng:beforehand; in advance<eg>yue:先行通知 (sin1 hang4 tung1 zi1)eng:to notify in advance<eg>yue:先行告退 (sin1 hang4 gou3 teoi3)eng:to leave in advance<eg>yue:請校長同各位老師先行離開。 (ceng2 haau6 zoeng2 tung4 gok3 wai2 lou5 si1 sin1 hang4 lei4 hoi1.)eng:May Principal and teachers please leave first.