词汇	a shaky chair
释义	a shaky chair 摇摇晃晃的椅子
随便看	ratio of rotating speed difference ratio of rubber and plastics ratio of running torque ratio of runoff ratio of sales ratio of sales to production ratio of sample rotation ratio of sample sizes ratio of sample to solution ratio of save Ratio of SBP recovery ratio of scattering loss ratio of secondary to primary wool follicles ratio of security to fixed liabilities ratio of sedimentation Ratio of seed/leaf ratio of segregation ratio of separation ratio of sex ratio of sexual distinction ratio of shear force Ratio of shoot/root total selenium ratio of shoot to leaf ratio of Si/Al ratio of signal to interference-plus-noise