「後備」

(pos:名詞)(sim:士啤)
<explanation>
yue:以防萬一、為咗補充而準備定嘅物資或者人（量詞：個）
eng:reserve; substitute
<eg>
yue:後備供電系統 (hau6 bei6 gung1 din6 hai6 tung2)
eng:back-up power system
<eg>
yue:阿明打後備。 (aa3 ming4 daa2 hau6 bei6.)
eng:Ming is on the reserve list (of players).
<eg>
yue:佢列做後備。 (keoi5 lit6 zou6 hau6 bei6.)
eng:He was left on the substitutes' bench.