研究表明，当妈妈和婴儿说话时，她们常常撅起嘴巴，做出夸张的嘴型以试图让婴儿更好的理解。

Studies have shown that when mothers are talking to their infants, they often protrude their lips and make exaggerated mouth movements in an attempt to make themselves better understood.

youdao

型夸张下摆，修饰肩部形成。

A exaggerated hem, modified shoulder formation.

youdao