Over half the population of this country participate in sport.
这个国家一半以上的.人口参加体育锻炼。
This autumn, 6000 residents will participate in the first phase of the project.
今年秋天，将有6000名居民参加该项目的第一阶段。
The US was ready to train its troops to participate.
美国准备训练军队参加。
Each child had participated in extracurricular activities at school.
每个孩子都参加了学校的课外活动。