他们之间的关系一直是出于需要而非选择的合作。
Theirs had always been a partnership driven by necessity rather than choice.
▼点击显示答案
theirs英 /ðeəz/|美 /ðɛrz/
解释
名词性物主代词 theirs 作主语（单数指代），过去完成时 had been 表示持续到过去某一时点的状态。
Theirs had always been a partnership driven by necessity rather than choice.
名词性物主代词 theirs 作主语（单数指代），过去完成时 had been 表示持续到过去某一时点的状态。