Ringon林贡
ringn.戒指;环;圈;拳击场;马戏场;帮派n.铃声;钟声;电话;口气v.包围;环绕;形成圈v.打电话;回响;鸣响;按铃;听上去
ring rot bacteria环腐病
ring the doorbell按门铃
ringworm of scalp头皮癣
ring of quotients商环
Ring-tailed catn.蓬尾浣熊
ringing apparatus振铃信号设备
ring installation安装活塞环
ring thread gauge螺纹环规
ring-off button话终按钮
ring design method环形设计方法