key-ring g钥匙圈
Key Ring-钥匙扣
key words -degree full ring二次全环
talk-ring key呼叫通话两用键
split-ring key环键
key words 2-degree full ring二次全环
N-COUNT（可数名词） A key ring is a metal ring which you use to keep your keys together. You pass the ring through the holes in your keys. 钥匙圈