n. any specific behavior
n. (chemistry) the capacity of a substance to take part in a chemical reaction
n. 活动, 行动, 活跃, 活力
[计] 活动
1. I enjoy outdoor activities like hiking and biking.
我喜欢远足和骑自行车等户外活动。
2. The teacher planned a fun activity for the students.
老师为学生们安排了一项有趣的活动。
3. Regular physical activity is important for good health.
定期的身体活动对保持健康很重要。