Definition
To depart or begin a journey.
启程
We need to leave before sunset, so we better hit the road now.
我们需要在日落前离开，所以我们最好现在就动身。
After a long day, I just want to go home, so I guess I should hit the road.
经过漫长的一天，我只想回家，所以我想我该出发了。
They hit the road at six in the morning for their hike.
他们早上六点出发去远足。