1) How long is it since it was fitted?
您戴环多久了?
2) Thanks for your waiting.
让您久等了。
3) How long do you want us to keep them?
您要存多久?
4) How long will you keep it?
您要借多久？
5) How long have you had it?
起了多久了?
6) How long are you going to stay here?
您在这里呆多久？
补充资料：持续
延续；继续：持续很长时间｜还将持续｜产量持续增长。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条