网站由一个消息提醒系统支持，问题得到答案的平均时间为14分钟。
The site is supported by a system of notification alerts, and the average question on Piazza will receive an answer in 14 minutes.
本周76岁的爱德华兹肯尼迪患上脑癌的消息提醒着人们这一生命中最基本的事实。
The announcement this week that Edward Kennedy (76) is suffering from brain cancer is a reminder of life’s most basic truth.
本周76岁的爱德华兹·肯尼迪患上脑癌的消息提醒着人们这一生命中最基本的事实。
The announcement this week that Edward Kennedy (76) is suffering from brain cancer is a reminder of life's most basic truth.
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