n.膝蓋骨
v.射擊某人的膝蓋骨
A subluxation occurs when the kneecap is pulled toward the outside of the knee. 當(dāng)膝蓋骨被拉到膝部外面發(fā)生半脫位。
Bynum sustained a bone bruise in his left knee and he briefly dislocated his kneecap in the January game. 拜納姆在一月份的比賽中膝蓋骨被撞，導(dǎo)致膝蓋骨脫臼。
