They're still working on it.句中的working on 为什么不用成repairing

They're still working on it.句中的working on 为什么不用成repairing 英语翻译they're still working on it.这句话中的still怎么翻译?working on 又该 No,they 're still working on it.是否可以改为：No,they're still repa They are still working on it.中working on it次序以及词义的解释? they are still working on it .这个介词on是干什么的 They're working hard on the field改为感叹句 We still went on working ______ cold it was. Although it was late at night,Mr.Wu still went on working(句意 being tired ,he still kept on working .(简单句） They went on working是什么意思 they went on working though it was dark .的同义句,谁会了, It is raining hard.H_______,they go on working.