kneecap
noun [ C ] uk/ˈniː.kæp/ us/ˈniː.kæp/
髌，膝盖骨
the bone at the front of the knee joint
Synonym: patella
kneecap
verb [ T ] uk/ˈniː.kæp/ us/ˈniː.kæp/ -pp-
（作为惩罚）打破（某人）的膝盖骨;（尤指）枪击（某人）的膝盖骨
to injure someone in the knee as a punishment, especially by shooting