this is the first machine we made和 this is the first machine

this is the first machine we made和 this is the first machine this is the machine ()we have had so much trouble The problem is what we should do with this machine The machine writes words ,and this is a ( ) machine is the price of this machine? This machine is unavailable. This is not the first this is the first time i came to china和this is the first tim either of the tools is used to repair this machine is this factory___you came to try the newly invented machine this is the machine repaired .是不是正确的说法 This machine is often used _____ the wood.