虽然身为明星的黄觉经常出席各种活动，但是第一次参加公益活动，仍然让他感到紧张。
Although Huang star as always to attend various activities, but first take part in public activities, he was still nervous.
而担任全职妈妈的女性校友则会更多参加公益活动，有67%表示参加过大量的志愿者活动。
Alumnae who care for children full-time are even more committed to pro bono work, with 67% reporting substantial volunteer activity.
我们可以参加一些公益活动来植更多的树，因为树对我们的环境有好处。
We can take part in some commonweal activities to plant more trees, for the trees are good to our environment.
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