my watch is either fast or yours is slow

my watch is either fast or yours is slow 93 My watch doesn't___well.It runs either fast or slow.A.use My watch is two seconds fast/slow.什么意思? My watch is two minutes slow what adout (yours) why要用yours slow is fast My watch is three minutes slow. My watch is two minutes slow.what about ( My watch is two minutes slow中的slow为何放在two minutes的后面 my watch is ten minutes slow.请问句中slow的词性?为何这样用? My watch is 5 minutes fast这里把fast 放到is 后面可以吗? My watch is fa 轮机英语,However fast or slow the combustion rate,it is still a is this watch yours?同义