Have you been waiting long?
你等了很长时间吗？
He shrieked a long, wordless cry.
他发出一串长长的尖叫。
The long journey tired him.
漫长的旅程使他疲倦。
How long is the River Nile?
尼罗河有多长？
Workers toiled long hours.
工人们长时间辛苦工作。
Doctors often work very long hours.
医生经常长时间工作。
I've had a long hard day.
我这一天是又长又累。