突然到达，蜂拥而至：指一群人突然到达某个地方或某个人身边，通常是没有事先通知或邀请的。
... descend on突然袭击;突然访问 turn out出席（某项活动）；在场 despite引导让步状语 ...
... descend on突然袭击;突然访问 turn out出席（某项活动）；在场 despite引导让步状语 ...
descend on 指捕食的鹰俯冲下来捕捉牺牲品，但它常常用于形象的比喻。 overtake 的原义是“赶上或追上”，在表示袭击时，主语通常是“风暴、灾难、不幸的事情”等。
Some 3,000 city officials will descend on Capitol Hill on Tuesday to lobby for more money.
大约三千名市政官员将于周二突访美国国会山，为争取更多经费游说。
I hope the grace of God would descend on me.
我期望上帝的恩惠。
Hundreds of big wheels descend on the Swiss ski resort each year.
每年，数百名全世界最有影响力的人物都会聚集在这个瑞士滑雪胜地。
The Under-20 World Cup draws only a fraction of the fans that the full World Cup will bring to South Africa, when hordes of supporters from 32 nations will descend on the southern end of the continent.
VOA : standard.2009.10.12
Descend on what the terrorists happened to do last time, and we'll all be safe.
These commando-like management teams descend on the newly acquired company and act as in-house consultants.
Regardless, we'll be there to scope out any outlandish additions when we descend on Nevada in a few weeks.