ally oneself to

例句：

1. 1. They ally themselves with the government to pass a new law.
   他们与政府结盟，通过一项新法律。
2. 2. The two countries have been ally for many years.
   这两个国家已经结盟多年了。
3. 3. He is an ally of the opposition party.
   他是反对派的盟友。