红口白牙的承诺就跟睡衣一样不可靠，一根指头就可以穿过。

Promise is as unstable as pyjamas; even a finger can through it.

要让你的衣食父母相信你红口白牙的谎言，这需要演戏的天分、狡猾的计谋和主观的意愿。

It takes talent, cunning, and a willingness to lie through your teeth to the people who pay you.