mouthing

动词 mouth:

1. express in speech
   同义词：talk, speak, utter, mouth, verbalize, verbalise
2. articulate silently; form words with the lips only
   同义词：mouth
3. touch with the mouth
   同义词：mouth

1. My mouth is watering.
   我在流口水了。
2. Mouthing empty compliments.
   随便说些恭维话

mouth.ing

n.（名词）
A bombastic or empty phrase or speech. Often used in the plural:
夸夸其谈：空话或言过其实的话语或词组，通常用作复数：
例句：
mouthings about sin and morality.
关于善与恶的空谈