罗纳德医生：……你要双膝弯曲。
随着呼气，抬起你的双脚，双膝弯曲着靠近胸腔。
With an exhalation, bring your feet up, keeping your knees bent near your chest.
身体仰卧于地面，双膝弯曲，双足平放于地面上。
Lie on the floor with both knees bent and feet flat on the floor.
双膝弯曲着跳，这样会缓解冲击力。
经弯曲试验后，该膜仍可保持良好的疏水疏油的双疏性特征。
After the bending test, the mats could still keep their good amphiphobicity.
经弯曲试验后，该膜仍可保持良好的疏水疏油的双疏性特征。
After the bending test, the mats could still keep their good amphiphobicity.
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