单词	ball contact tip
释义	ball contact tip 球侧头
随便看	class noun class NP class NP-complete problems class NP problem class Nuda class nudas class number class number of a rational simple algebra class object class of Abelian group class of accuracy class of a congruence class of activity class of a curve class of advanced training class of a lattice class of a lattice group class of algebra class of algebras class of algorithm class of algorithms class of a nilpotent group class of appeals class of business class of channel 潮头如雪潮平两岸失潮平两岸阔潮平系缆潮打空城寂寞回潮来天地青潮正落潮溅乌纱潮生潮落潮生潮落龟文龟文竹龟板龟甲龟甲竹龟筮龟纽龟缩龟背龟背锦