低下 /dīxià/ angolul

let down▼(to allow to descend)
verb
[UK: let daʊn] [US: ˈlet ˈdaʊn]

lower [lowered, lowering, lowers]▼(let (something) descend by its own weight, such as a bucket or sail)
verb
[UK: ˈləʊ.ə(r)] [US: ˈloʊ.r̩]