NASA said in a statement the first sample container was dropped on the Mars surface by Perseverance on December 21.

NASA在一份声明中表示，“毅力号”于12月21日将第一个样本容器投放在火星表面。

Deciding to call the first empty  sample container at Brac an " atmosphere sample" , these next two samples were officially  Perseverance's 5th and 6th sample tubes, and their 3rd and 4th rock samples.

决定将布拉奇的第一个空样品容器称为“大气样品” ，接下来的两个样品正式成为毅力号的第五和第六个样品管，以及第三个和第四个岩石样品。