retractile造句 1 Wounds inflicted by a leopard's normally retractile claws require instant treatment. 2 Wu Zhijiang's head went in retractile door suddenly. 3 A cat's claws are retractile. 4 How can ability make anus retractile? 5 It also a troubleshooting analysis of the undercarriages retractile system. 6 The lens is made of cell - shaped plastic which has the beautiful retractile effect.