I tried to persuade him but he remained firm这里的firm是什么词性用fir

I tried to persuade him but he remained firm这里的firm是什么词性用fir I tried to persuade him but he remained______. I tried to persuade him not to smoke,but he wouldn't listen I tried very hard to persuade him to join our group but I me I tried to persuade him not to keep in touch with her,but wh company firm factory的区别是什么? I tried to _____ him,but I can _____nothing.(用look at,see,lo He left ,but I still remained He didn't agree with me at first ,but I ---persuade him She tried to talk to him an persuade him not to buy the car. she tried to talk to him and persuade him not to buy a car.语 corparation / firm / company区别是什么?