“口型” 英语怎么说？

口型

[词典]

the

shape

of

a

mouth

when

a

person

is

speaking

or

pronouncing

a

certain

sound;

[例句]我用口型默示告别，然后匆匆跟在妈妈身后走了进去。

i

mouthed

a

goodbye

and

hurried

in

behind

momma