It is common knowledge that the Chinese invented paper-making and gunpowder.
It is common knowledge that the Chinese invented paper-making and gunpowder.
中国人发明了造纸术和火药，这不过是常识罢了。
It is common knowledge that the Chinese invented paper-making and gunpowder.
中国人发明了造纸术和火药，这不过是常识罢了。