activity/ækˈtɪvɪtɪ/
n.-ties1. 活跃;活动性The classroom was full of activity; every child was busy.教室里充满了活跃的气氛,每个孩子都忙个不停。
2. 活动social activities社会活动
Too many extracurricular activities take up too much of our precious time for study.课外活动太多,占去了我们很多宝贵的学习时间。
3. 行动;行为