1) How much longer is this going to drag on?
这事还要拖多久?
2) How long shall it take to have the payment completely make?
还清货款要多久？
3) Will it be much longer?
还要很久吗?
4) How long do we stop here?
这站停多久？
5) How long do you want us to keep them?
您要存多久?
6) How long will it take by surface mail?
平寄要多久?
参考词条