美 [fɔːl daʊn]
摔倒：指因失去平衡或意外而倒下。
失败，不达标：指未能达到期望或要求。
lose an upright position suddenly
同义词： fall
... direct to指路、针对、把(注意力、精力)贯注在...上 fall down跌倒; 倒塌下来、[口]计划不切实际、失信; 没有完成或履行诺言 fall over落在...之上、脸朝下跌倒、极力/急于做 ...
... fall down 落下；跌到；倒塌；失败；证明是不行的 go down （价格）下降；（日、月）落下；（风、浪）平静；（船）下沉；倒闭 hand down 递给；传递下来；世代相传 ...
... fall down 落下；跌到；倒塌；失败；证明是不行的 go down （价格）下降；（日、月）落下；（风、浪）平静；（船）下沉；倒闭 hand down 递给；传递下来；世代相传 ...
... fall down 落下；跌到；倒塌；失败；证明是不行的 go down （价格）下降；（日、月）落下；（风、浪）平静；（船）下沉；倒闭 hand down 递给；传递下来；世代相传 ...
The house looked as if it was about to fall down.
房子看起来好像就要倒塌似的。
Don't fall down again today.
今天别再跌倒了。
The house will fall down.
那屋子迟早要倒塌。
People in the area saw him fall down.
VOA : special.2009.12.14
The first step to insight is to ask questions like why do things fall down and not up?
起初的洞察力是问问题,为什么物体坠地而不是上升？
心理学导论课程节选 : 耶鲁公开课
And you know, that's tough for them but you know what, if you fall down,
对他们来说很难，但是如果你摔倒了，
SpeakingMax英语口语达人 : 不要放弃
Then he would fall down on the floor again like a ball of dirt and start rubbing the side of his head with his back foot as if he had no idea he had been doing any more than any frog might do.
VOA : special.2009.08.29
American Nick Symmonds won his 800-m semifinal heat, despite having three runners in front of him trip and fall down.
VOA : standard.2009.08.22
They want her to fall down but they don't to be seen tripping her up.
And it's much tougher to move back up the list than to fall down.
That means if you fall down to the snow you are still 16 feet above the ground!
FORBES: Hit The Slopes! Coast-to-Coast Snow Kicks Off Skier's Dream Season For 2013