meechanBNC¹⁴⁴⁶⁶⁴⁺³ 例句 The syringe invented by Dr John Meechan, which is among projects recognized with a national award for innovation, will lessen the pain of dental injections by reducing their acidity. 该注射器由 Dr John Meechan发明，荣获了国际性发明大奖的公认。该注射器通过减少注射剂酸度，降低了牙科注射带来的疼痛。 renren