(pos:名詞)(ant:冗員)
<explanation>
yue:不可或缺嘅重要成員
eng:a crucial member of a team
<eg>
yue:佢又做得又捱得，係我哋部門嘅要員。 (keoi5 jau6 zou6 dak1 jau6 ngaai4 dak1, hai6 ngo5 dei6 bou6 mun4 ge3 jiu3 jyun4.)
eng:He is working hard and smart, thus a crucial member of our department.