今天我们要学的词是 intruder.
intruder 的意思是侵入者，不速之客。When drones buzzing over the runway forced London's busy Gatwick Airport to shut down, many travelers wondered why it is so hard for authorities to stop such intruders. 伦敦繁忙的盖特威克机场跑道上空出现嗡嗡作响的无人机，导致机场关闭，许多乘客不明白为什么当局很难阻止这些不速之客。
If a corporate data center is broken into, the intruder can attack any system on the network, often with disastrous results. 如果企业数据中心被攻破，入侵者可以攻击其网络上的任何系统，通常会带来灾难性的后果。