n.

1. 遠足；短途旅行[C]
   We are planning for our excursion next week.

   我們正在為下週的遠足作準備。

   We took the weekend excursion to the seashore.

   週末我們去海濱遊玩了。

2. 遠足隊，遊覽團[C]
3. 離題[U][（+from）]
   Your comments are an excursion from the major theme.

   你的話偏離了主題。

   excursion from the major theme

   偏離主題

n.

1. a short journey, especially one taken for leisure.
2. a deviation from a regular activity or course:
   the firm's disastrous excursion into the US electrical market.
   ▸technical a movement along a path or through an angle.