- 1. 人所共知 It's pointless trying to keep your friendship secret -- it is common knowledge already. 你們無謂將友情保密－－其實已盡人皆知了。
...都不痛不癢（對我都一樣）。 不痛不癢cannot be described as “common knowledge”. Besides, “common knowledge” means 眾所週知. It is...
It’s common knowledge among nurses that before adding drugs to a patient’s IV...
...to the medical care given to pregnant women 1. It is common knowledge now that some women suffer from (postnatal ) depression after giving birth...