flail
verb [ I or T ] uk/fleɪl/ us/fleɪl/ (also flail about/around)
（尤指手臂和双腿）乱动，胡乱摆动
(especially of arms and legs) to move energetically in an uncontrolled way
A wasp came towards us and Howard started flailing his arms around. 一只黄蜂冲我们飞来，霍华德开始使劲挥舞胳膊。
She ran from the house in a terrible rage, her arms flailing in the air. 她怒不可遏地从房子里跑出来，手臂在空中乱挥乱打。
flail
noun [ C ] uk/fleɪl/ us/fleɪl/
（尤指旧时脱粒用的）连枷
a tool consisting of a rod that hangs from a long handle, used especially in the past for threshing grain