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
heroically fight the enemy to distinguish oneself in action - shā dí zhì guǒ
On the combination of high and low - lùn gāo guǎ hé
a floating family and a drifting abode - fú jiā fàn zhái