(pos:動詞)
<explanation>
yue:#上升 同#下降
eng:to move vertically; to rise and drop; to elevate and fall; to go up and down
<eg>
yue:#升降機 (sing1 gong3 gei1)
eng:evelator; lift
<eg>
yue:輪椅升降台 (leon4 ji2 sing1 gong3 toi4)
eng:stairlift
<eg>
yue:側風越大，對飛機升降嘅潛在風險就越大。 (zak1 fung1 jyut6 daai6, deoi3 fei1 gei1 sing1 gong3 ge3 cim4 zoi6 fung1 him2 zau6 jyut6 daai6.)
eng:The stronger the crosswind, the greater is the potential risk for aircraft taking-off and landing.