lever with ovoid grip

例句：

1. 1. The scientist used a lever to lift the heavy box.
   科学家使用一个杠杆来举起那个沉重的箱子。
2. 2. The car was balanced on a lever between the wheels.
   汽车在轮子之间的杠杆上保持平衡。
3. 3. The doctor used a lever to help the patient move.
   医生使用一个杠杆帮助病人移动。