regular matter
To be frank means to be regular.
Idioms and allusions
[source]: the biography of simaziru in the book of the Northern Qi Dynasty: "as for the return, both the emperor Gaozu and the empress Wuming had the legacy of Lai, which was taken for granted." In the Song Dynasty, Wen Tianxiang's poem "with Zhu Taibo", it is said that "riding a horse and taking care of the meal from day to night, it is common to be frank, but the foreign affairs in the mountains do not receive any attention."
[example]: we will meet in this gap. Song bin Suo Hua Wei Yue Bo by Wang Tao in Qing Dynasty
Discrimination of words
nothing
regular matter
deliver all living creatures from torment - pǔ dù zhòng shēng
try to draw a tiger and end up with the likeness of a dog -- make a poor imitation - huà hǔ chéng gǒu
resolutely to retire at the height of one 's official career - jí liú yǒng tuì
a dragon and a tiger in combat - lóng zhēng hǔ zhàn