它参与了反竞争运动。
我们参与反核活动，保护动物，以及维持和保护我们的生态系统。
We're involved in anti-nuclear activity, conservation and protection of animals and protection and support of our eco-system.
他乔装成警察进入该岛并对这个夏令营中的600名青少年开火，他们正参与为期一周的反种族主义讲习班，研讨会及运动会。
He entered disguised as a policeman and opened fire on the camp's 600 youngsters, who were attending a week-long programme of anti-racism workshops, seminars and sports.
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