单词	knock down a hurdle
释义	knock down a hurdle 碰倒栏架
随便看	civil admission civil aerodrome civil aeroengine Civil Aeromedical Institute civil aeromedical institutecami Civil Aeromedical Research Institute civil aeronautic administration Civil Aeronautical Regulation civil aeronautics civil aeronautics act Civil Aeronautics Administration civil aeronautics administrationcaa civil aeronautics administration manual Civil Aeronautics Authority civil aeronautics authoritycaa Civil Aeronautics Board civil aeronautics boardcab civil aeronautics board cab Civil Aeronautics Manual Civil Aeronautics Research and Development civil aeroplane civil aerospace medical association Civil Aestheticism civil affair civil affair public health