活化酵母多糖的英文：
activated zymosan

She is an active participant in this activity.
她积极参与这项活动。

They are union actives.
他们是工会积极分子。

contamination activity
污染放射性

He took an active part in the extracurricular activities in the school.
他积极参加学校的课外活动。

The students take an active part in the school activities.
同学们都积极参加学校组织的各项活动。