from activity to activity

from activity to activity.的意思 they take their children from activity to activity ,and try activity from activaty to activity中的 activity前为什么不加定冠词? 初二英语课文有疑问They take their children from activity to activity, they take their children from activity to activity ,中的语法知识点 英语翻译they take their children from activity to activity,and t they take their children from activity to activity 为什么这个句子中a 根据英文解释写单词p____(to make from materials)h____(an activity whic they found it _……_（take）their children from activity to prep activity翻译 activity是什么