The company has come a long way in the last 5 years.

　　公司在過去的5年里取得了許多進步。

　　I used a long exposure for this one.

　　我這張照片用的曝光時間長。

　　It's a long time since they left.

　　他們已經離開很久了。

　　How long have you been in your present job?

　　你干現(xiàn)在這工作多長時間了？

　　How long have you been living in this country?

　　你在這個國家居住多久啦？