They were eliminated in the first round of the competition.

eliminated 是动词 eliminate 的过去分词形式。eliminate 由前缀 e-（表示"向外"）和词根 limin（来自拉丁语 limen，意为"门槛"）组成，字面意思是"赶出门槛"，引申为"淘汰、排除"的意思。在比赛中指"被淘汰出局"。