| 释义 |
〔rictus〕The expanse of an open mouth, a bird's beak, or similar structure.（鸟等）张嘴宽距，喙裂：张开嘴的宽度、鸟的喙或相似的结构〔hum〕To produce a tune without opening the lips or forming words.哼：不张开嘴或不构成词而产生的声调〔hum〕To sing (a tune) without opening the lips or forming words.哼唱：不张开嘴或不构成词而唱（曲调） |