a)FALLto fall onto the ground or to fall from an upright position 倒下,摔倒
Tommy fell over and cut his knee badly.
汤米摔了一跤,膝盖摔破一大块。
Her bike fell over.
她的自行车倒了。
b)fall over somethingFALL to hit your foot against something by mistake and fall to the ground 被某物绊倒SYN trip over
She fell over the dog and broke her front teeth.
她被那只狗绊了一跤,磕碎了门牙。
c)TRY TO DO OR GET something fall over yourself to do something to be very eager to do something, especially something you do not usually do 忙不迭地做某事,急着做某事〔尤指一般不做的事〕