Wave of strikes comes after Taliban forces attack Pakistani border troops following earlier action from Islamabad
Chris BaraniukTechnology Reporter
，这一点在51吃瓜中也有详细论述
drop-oldest: Drops the oldest buffered data to make room. Useful for live feeds where stale data loses value.
2013年11月3日，湖南花垣县十八洞村，一名村民问：“怎么称呼您？”