| 释义 |
●ˌfall ˈdown 🔑1. to suddenly stop standing 突然倒下；坍塌◆I thought the whole house was falling down.
我以为整个房子要塌了。◆Her legs were so weak that she fell down on her knees.
她双腿虚弱难支，突然跪倒在地。 ➡ SYNONYMS 同义词辨析fall down
cave in ◇ collapse ◇ fall down ◇ fall over ◇ topple over
These verbs are all used to talk about buildings and other structures falling to the ground. 这些动词都表示倒塌、坍塌、倒下。
cave in
(of a roof, wall, etc.) to fall down and towards the centre （房顶、墙壁等）塌落，塌陷，坍塌The ceiling suddenly caved in on top of them. 天花板突然塌下来，砸到他们头上。
collapse
(of a building, etc.) to fall down or fall in suddenly, often after breaking apart （建筑物等）突然倒塌，坍塌The roof collapsed under the weight of snow. 屋顶被雪压塌了。
fall down
to suddenly stop standing 突然倒下；坍塌The house looked as if it was about to fall down. 房子看上去要倒塌了。
fall over
to become unsteady and fall down 摔倒；倒下I thought I was going to fall over. 我以为我要跌倒了。The chair had fallen over. 椅子倒了。
topple over
to become unsteady and fall down 倒塌；倒下The pile of books toppled over. 那摞书倒了。
WHICH WORD?
Only fall down and collapse can be used to talk about whole buildings. Cave in is used with parts of buildings, and fall over and topple over are used to talk about other structures. 只有 fall down 和 collapse 可指整幢建筑物。cave in 用于指建筑物的某个部分，而 fall over 和 topple over 用于指其他结构体。
PATTERNS AND COLLOCATIONSa building / house falls down / collapsesa roof / wall / ceiling collapses / caves into completely / suddenly collapseto be about to fall down / fall over / collapse / cave in / topple over2. to drop to the ground 落下；垂到地面◆His trousers were falling down.
他的裤脚拖到了地面。◆A lump of the ceiling fell down.
天花板掉下了一小块。3. be falling down (only used in the progressive tenses 只用于进行时) (of a building 建筑物) to be in extremely bad condition 破烂不堪◆It’s a beautiful house but it’s falling down.
房子十分漂亮，但摇摇欲坠。4. (of an idea, an argument, a method, etc. 想法、论点、方法等) to be shown to be not true or not good enough 站不住脚；说不通；不适用◆That’s where the theory falls down.
这就是该理论不能自圆其说之处。[v + adv]▸ ˈdownfall noun
the loss of sb’s power, position, money, etc.; the thing that causes this 衰落；衰败；垮台；衰落（或衰败、垮台）的原因 |