OOabbr.面向对象的(=Object Oriented)
onwardsadv.向前;前进;在前面=onward.
onyxisn.[医]嵌甲
Onyxide铵磺胺
onyxitis[医] 甲床炎
onyxauxis甲肥厚
onyx marble类似玛瑙的条纹大理石