v. (with)使结合,结盟n. 同盟国,同盟者
拆分: al-加强意义 + -ly-捆,约束 → 大家捆在一起 → 同盟
例:v. Several tribes allied to fend off the invaders. 几个部落联合起来抵抗侵略者。Italy allied itself with Germany during World War II. 在第二次世界大战期间意大利和德国结成同盟国。
