the joining together of different political parties or groups for a particular purpose, usually for a limited time, or a government that is formed in this way

Government by coalition has its own peculiar set of problems. 联合政府有其自身特有的一系列问题。

By forming a coalition, the rebels and the opposition parties defeated the government. 叛乱者与反对党结成联盟，击败了政府。

a coalition government 联合政府

The coalition immediately decided to cut capital spending. 联合政府立即决定削减资本支出。