他们甚至会和我们聊天、玩游戏。
注册时，你就会领养一只活泼的企鹅来与朋友聊天、玩游戏、探索、收集硬币、甚至让你自己的圆顶冰屋个性化。
When you sign up, you adopt an animated penguin to chat with friends, play games, explore, collect coins and even personalize your very own igloo.
学生们可以在论坛上聊天、玩游戏、一起解决问题，不需要任何费用，或者他们可以花几百美元参加受过培训的教师的课程。
Students use forums to chat, play games, and solve problems together at no cost, or they can pay a few hundred dollars to take courses with trained teachers.
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