The company has come a long way in the last 5 years.
公司在过去的5年里取得了许多进步。
I used a long exposure for this one.
我这张照片用的曝光时间长。
It's a long time since they left.
他们已经离开很久了。
How long have you been in your present job?
你干现在这工作多长时间了？
How long have you been living in this country?
你在这个国家居住多久啦？