(pos:名詞)<explanation>yue:#主要#原因(量詞:個)eng:main cause; principal factor<eg>yue:水浸嘅主因係渠道淤塞。 (seoi2 zam3 ge3 zyu2 jan1 hai6 keoi4 dou6 jyu1 sak1.)eng:The main cause of flooding is silting of channels and ditches.