Be meticulous in speech and smile
In Chinese, Pinyin is B ù g ǒ uy á nxi à o, which means not to talk and laugh casually. It describes a serious and solemn attitude, which is the same as "not to talk and laugh casually". It's from the second moment of surprise.
The origin of Idioms
"The second moment of surprise" Volume 2: "miaoguan change to the teacher's self-esteem, make-up model as a sample, all self reserved, meticulous
Idiom usage
Used as a predicate or attributive; used in writing. I also heard that American schoolchildren should be cautious every step of the way. Liang Qichao's general comments on Reform on preschool education
Be meticulous in speech and smile
Zhuang Sheng dreams of butterfly - zhuāng shēng mèng dié
one 's words pour forth like rushing water - xuán hé xiè shuǐ
One hundred is not many, one is not few - bǎi bù wéi duō,yī bù wéi shǎo
adopt good advice from all quarters - bó cǎi zhòng yì