To that end, Perseverance is the most ambitious of the new spacecraft and is actually just the first part of a multipart mission.

因为这一目标，“毅力号”也成了新航天器中最具雄心壮志的一部分，然而，这也只是此次探测任务的首站任务。

And some birds use tools—like brainy New Caledonian crows, which can assemble multipart tools to solve puzzle boxes presented to them by researchers.

有些鸟类会使用工具——比如聪明的新喀里多尼亚乌鸦，它们可以组装多部分工具来解决研究人员提供给它们的拼图盒。