21.It is known to all that gunpowder is ___ Chinese inventio

21.It is known to all that gunpowder is ___ Chinese inventio 英语翻译翻译:1.It is known to all that Taiwan is part of Chinese t it is known to all that 和as is known to all that 区别 It is known ___ all people that Beijing is known ___ the cap It is known to all that sea water__(contain)salt. It is known to all that 的作文 It’s known to all that.改成what is known to all is that 中为什么要加 1.___ is known to us all is that China is a developing count 3.___ is known to us all is that America is a developed coun It is known to all that mathematics is the basis of all othe ___ is known to us all is that the Olympic Games will take p as it is known to all与as is known to all与it is known to all