短语词组短語caught flat -footed 無計可施;陷入睏境;墮入窘境;不意被睏flat -footed 手足無措catch flat -footed 乘其不備抓住;使大喫一驚Flat -footed Walk 平走慢步;馬的慢四拍步樣catch someone flat -footed 乘人毫無準備Charley walked in flat -footed 查利腳跟站穩了 返回 flat-footed