Definition
- C1
to embark on a trip or depart from a location
出发；离开
We will head off tomorrow morning to begin our journey.
我们将在明天早上出发，开始我们的旅程。
He headed off a few hours early to avoid the traffic.
他提前几个小时出发，以避开交通堵塞。
We decided to head off before sunset to ensure we arrive safely at night.
我们决定在日落前出发，以确保晚上安全到达。