activity
n. 活跃状况，热闹；活动；（Activity）热力活性，活度
复数 activities
例句
It was a period of intense activity.
那是活动激烈的时期。
《牛津词典》
Parents encourage every activity imaginable.
父母鼓励一切可能的活动。
《柯林斯英汉双解大词典》
Economic activity often follows a cyclical pattern.
经济活动常常遵循周期性模式。
