interloper
词根词缀：
elope v. 私奔
e 出 + lop 跑 + e → 出跑 → 私奔
gallop v./n. （马等的）飞跑，疾驰
gal 尖叫 + lop 跑 → 尖叫着跑走 → 疾驰
interloper n. 入侵者；干涉者
inter 在…之间 + lop 跑 + er 人 → 跑入二者之间 → 入侵者
数据来源：新东方英语词汇速记大全
相关例句：
She felt like an interloper in her own family.
她感到在自己家里像个外人。
Sadly, it has been absconded by some foul interloper!
伤心啊，这些肮脏的闯入者居然偷走了它！
But the rejected lover or mate cannot afford to believe that his beloved has freely turned away from him& and so he ascribes sinister or magical properties to the interloper.
但是，遭离弃的情人或配偶无法相信她的心上人是自由地背离他的&因而他归咎于插足者心术不正或迷人有招。
Both creatures shrunk back into the rocks, even though Judith's attention was fixed on the interloper.
即使是现在茱蒂丝的注意力被入侵者完全吸引了，他俩还是不由自主地退回到了石堆里。
She had no wish to share her father with any outsider and regarded us as interlopers.
她不愿与任何外人分享父亲的爱，并把我们视为闯入者。
Security and police swiftly spotted that there was an interloper and he was led away struggling and clutching his passport.
安保警察很快发现队伍中有一个入侵者，布罗金奋力挣扎紧紧抓住自己的护照不放，但还是被带走了。