词汇	They laugh at him
释义	They laugh at him. 他们讥笑他。
随便看	relative physiological availability relative pin relative pins relative pitch relative pitch hearing relative pitch-shortening value relative placement relative plant height relative plasmalemma permeability relative plasma permeabilitg RPP Relative plasma permeability relative plateau slope relative plating efficiency relative plot relative plug radius relative plumb line deflection relative pluviometric coefficient relative pocket Relative Poems and Paintings relative point relative pointing device relative poisoning relative polarity relative pole relative pollution index