fall down
释义：
fall down 倒下，倒塌，失败
最基本的含义为掉在地上，或者从上至下掉落下来，fall down a cliff 表示从悬sPFej崖上掉下来， fall down the stairs 表示在从台阶上摔下来。也可以用来表示“失败”。
【例句】
1.My father fell down the stairs the other day.
我爸爸有一天从楼梯上摔了下来。
2.I fell dow//www.58yuanyou.comn the stairs and broke my tooth.
我从楼梯上摔了下来原由网，摔掉了牙。
3.The building fell down. Three people were crushed to death.
那座建筑倒www.58yuanyou.com塌了，3 个人被压死了。
A: There is a lot of ice onwww.58yuanyou.com the sidewalks today.
今天人行道上结了很厚的冰。
B: Be careful that you don't fall down.
小心点，别摔倒了。