摘要：hit the road/trail引申含义：上路;出发，动身，开始旅程；如：
hit the road/trail有两个含义和用法：
1.hit the road/trail上路;出发，动身
hit the road/trail本身含义：徒步，如：
She decided to hit the trail alone to clear her mind.
她决定独自徒步以整理思绪。
The summer camp includes hitting the trails in the Rockies.
夏令营包含落基山脉的徒步项目。
Hitting the trail helped him recover from burnout.
徒步帮助他从职业倦怠中恢复。
2.hit the road/trail引申含义：上路;出发，动身，开始旅程；如：
I'm going to hit the road now,
我要上路了。
I'd love to stay longer but I must be hitting the road.
我很想多呆一段时间，可我必须要走了。
I'd like to stay longer but I have to hit the road because it's getting dark.
我很想多待一会，但是外面天黑了我必须得走了。
It’s time to hit the trail and head home.
该启程回家了。
Lois, it's getting late. It's been a great party, but it's time for us to hit the road and get home to bed. Tomorrow's a work day and we all have to get up early.
Lois，时间晚了。这个聚会真尽兴，但是我们该回家睡觉了。明天还要上班，我们都得早起呢。
Good one. Let's hit the road.
很好，我们走吧。《小谢尔顿》
In an attempt to beat the traffic, many people hit the road earlier.
为了避免交通拥挤，许多人提前上路。
We hit the road before sunrise.
我们在日出前上路了。
We’d better pack the car and hit the road before it gets dark.
我们最好在天黑前把车收拾好上路。
I’d love to stay and have dinner, but I’d better hit the road.
我很想留下来吃晚饭，但我最好还是出发吧。
I'd love to stay longer but I must be hitting the road.
我很想多呆一会儿，但我得出发了。
Look at the time! I really enjoyed the party, but I think it’s time we hit the road.
看看时间！聚会真是太开心了，不过我想我们该走了。
We'd better hit the road before traffic gets even worse.
我们最好在交通变得更糟之前出发。
She likes to avoid rush hour on her daily commute by hitting the road in the early morning.
她喜欢一大早出门，这样可以避开每天上班的高峰时段。
They hit the campaign trail in early spring.
他们从早春起就开始竞选活动了。
After packing our gear， we hit the trail at dawn.
收拾装备后，我们在黎明时分出发徒步。
We’re going to hit the road early tomorrow to start our trip across the US.
咱们明天一大早就要上路，踏上横穿美国的旅程。
Maybe we'll have a snack before we hit the road.
上路（出发）前能吃点心也不错。《冰川时代》
He's always on a business trip: he often gets home the night before he hits the road again next morning.
他老出差，常常是晚上刚回家，第二天早上又得启程。
其实，在很多的表达中，hit后面还会接一些地名或者一些建筑，此时就可以将其理解为go to 的意思，比如，
hit the bar去酒吧
hit the gym去体育馆。
来源：翅膀英语一点号