单词	crossing sign
释义	crossing sign 道口标志
随便看	patentor patentors patentoternate patent outsides patent oval foramen patent owner patent part patent-pending patent pending patent-pendings patent period patent policy patent pool patent pool agreement patent-pool agreement patent pooling patent pooling system patent pools patent portfolio patent proceedings patent property patent protection patent protective patent protector patent race 锯倒树儿捉老鹳锯匠相骂，东家造化锯响就有末锯响有末，磨响有音锯快不怕树粗锯碗找碴儿锯锅的戴眼睛，到处找茬儿锲而不舍，坚韧不拔锲而不舍，金石可镂。锲而舍之，朽木不折病机病株病根病框栏病框栏儿病案病榻病歪歪病殁病殃殃