单词	cow leather
释义	cow leather 牛皮
随便看	rotational f1ow rotational failure mechanism rotational family rotational farm rotational fault rotational field rotational fine spectrum rotational fine structure rotationalflap rotational flap rotational flex fatigue failure Rotational Flight Simulator rotational flow rotational flow field rotational flow grit chamber rotational flow sedimentation tank rotational flow self-priming pump rotational flying shears rotational fold rotational fold zone rotational forming rotational-free rotational freedom rotational frequence rotational frequency