vt.& vi.（使）折断，破碎 n.破裂，断裂,骨折
He suffered a hairline fracture of the right index finger.
他右手食指骨裂。
A doctor can reduce a fracture or dislocation.
医生能使骨折或脱臼复位.
Earthquakes happen when stresses in rock are suddenly released as the rocks fracture.
当岩石碎裂时其承受的压力突然释放出来，地震就发生了。