1. The femurs are the longest bones in the human body.
这是人体中最长的骨骼。

2. She fractured both of her femurs in a skiing accident.
她在滑雪事故中两根大腿骨骼都骨折了。

3. The femurs provide support and stability to the body while walking or running.
大腿骨在行走或奔跑时给身体提供支撑和稳定性。

4. The femurs connect the hip bones to the knee joints.
大腿骨连接髋骨和膝关节。

5. The doctor examined the patient's femurs to check for any signs of injury.
医生检查了病人的大腿骨，看是否有任何受伤的迹象。

6. The femurs of a dinosaur are much larger and stronger than those of a human.
恐龙的大腿骨比人类的大腿骨要大得多，也更加坚固。