名词
1. 短途旅行;远足
You can refer to a short journey as an excursion, especially if it is made for pleasure or enjoyment.
2. （尤指旅行社组织的）短途旅游
An excursion is a trip or visit to an interesting place, especially one that is arranged or recommended by a holiday company or tourist organization.
3. 尝试;涉猎
If you describe an activity as an excursion into something, you mean that it is an attempt to develop or understand something new that you have not experienced before.
1. wandering from the main path of a journey
Synonym: digression
2. a journey taken for pleasure
e.g. many summer excursions to the shore
it was merely a pleasure trip
after cautious sashays into the field