n. 侵略者【化】 侵入物

◆记忆方法一：
联想方式：invad-invade(侵略)+er(人的名词后缀)
进行侵略的人就是侵略者。

aggressive/aggression/invade/invader/invasion
记忆：
1. aggressive [ E5^resiv ] adj. 好斗的, 侵略性的 The strong tend to be aggressive. 强者多好斗。
2. aggression n. 进攻, 侵略 The bloody aggression is unforgivable. 血腥的侵略是不可原谅的。
3. invade [ in5veid] in-vade vt. 侵略, 侵袭, 拥挤 China was invaded by foreign forces several times in history. 历史上中国受到了数次外国侵略。
4. invader [ in5veidE ] n. 侵略者 All the invaders must be driven off. 所有的侵略者一定会被赶走。
5. invasion [ in5veiVEn ] n. 入侵 The military invasion aroused unrest in the Arabian world. 军事入侵引起了阿拉伯世界的不安。
另类阅读：
Never is an invasion welcome and never are invaders popular. An aggressive body is always a danger to human peace.