An airplane is like a teeter-totter. When the pilot moves the nose of the plane up or down, the seats in the extreme front and back are going to move a greater distance.

飞机就好像是一个跷跷板，当飞行员让飞机昂头飞行或者俯冲飞行的时候在最前面和最后面的位置就会有较大幅度的摆动。

youdao

An airplane is like a teeter-totter. When the pilot moves the nose of the plane up or down the seats in the extreme front and back are going to move a greater distance.

飞机就好像是一个跷跷板，当飞行员让飞机昂头飞行或者俯冲飞行的时候在最前面和最后面的位置就会有较大幅度的摆动。

youdao

The potential for significant lump sum reductions can be attributed to the teeter-totter relationship between pension lump sum values and interest rates.

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