When an army repels an attack, they successfully fight and drive back soldiers from another army who have attacked them.
例句
They have fifty thousand troops along the border ready to repel any attack.他們有5萬人的部隊駐扎在邊境，隨時準備擊退任何進攻。
V-RECIP
(磁極、電荷之間)排斥
When a magnetic pole repels another magnetic pole, it gives out a force that pushes the other pole away. You can also say that two magnetic poles repel each other or that they repel .
例句
Like poles repel, unlike poles attract...同極相斥，異極相吸。As these electrons are negatively charged they will attempt to repel each other.因為這些電子都是帶負電荷的，它們會互相排斥。
VERB
使厭惡;使討厭
If something repels you, you find it horrible and disgusting.
例句
...a violent excitement that frightened and repelled her.使她恐懼和厭惡的強烈興奮感