a motorcycle accident的用法和样例：
- I broke it in a motorcycle accident.
- Eon died in a motorcycle accident on 21st dawn.
- He was supposed to captain the football team until his leg was broken in a motorcycle accident.
- A 34 year old male presented with tumefaction, draining sinuses, and a subcutaenous tendon mass around his left knee 1 year after a motorcycle accident.
- Thanou and compatriot Kostas Kenteris missed doping tests on the eve of the 2004 Games' opening ceremony, claiming they were injured in a motorcycle accident.